diff --git a/public/js/app_checklist.js b/public/js/app_checklist.js
index b0779ab..b5ee5a4 100644
--- a/public/js/app_checklist.js
+++ b/public/js/app_checklist.js
@@ -1,6 +1,7 @@
 window.onload = async function () {
     const token = localStorage.getItem('auth_token');
     const movieTableBody = document.getElementById('movie-table-body');
+    const watchedRatioEl = document.getElementById('watched-ratio');
 
     function showTableLoading() {
       if (!movieTableBody) return;
@@ -18,6 +19,18 @@ window.onload = async function () {
       `;
     }
 
+    function setInlineLoading(el, label = 'Chargement…') {
+      if (!el) return;
+      el.innerHTML = `
+        <span class="d-inline-flex align-items-center gap-2" aria-live="polite" aria-busy="true">
+          <span class="spinner-border spinner-border-sm text-secondary" role="status" aria-label="Chargement">
+            <span class="visually-hidden">Chargement...</span>
+          </span>
+          <span>${label}</span>
+        </span>
+      `;
+    }
+
     function showTableError(message) {
       if (!movieTableBody) return;
       movieTableBody.innerHTML = `
@@ -135,29 +148,52 @@ window.onload = async function () {
       return Number.isNaN(d.getTime()) ? null : d;
     }
 
+    async function fetchMoviesSummary(year) {
+      const res = await fetch(`/api/movies/summary?year=${encodeURIComponent(String(year))}`, {
+        method: 'GET',
+        headers: { 'Authorization': `Bearer ${token}` }
+      });
+      if (!res.ok) throw new Error('Failed to fetch movies summary');
+      return await res.json();
+    }
+
     const activeYear = await fetchActiveYear();
     document.title = `Pool Oscars ${activeYear} - Checklist`;
     const oscarYearEl = document.getElementById('oscar-year');
     if (oscarYearEl) oscarYearEl.textContent = String(activeYear);
 
-    const oscarEffectiveDate = await fetchOscarEffectiveDate(activeYear);
-    const targetDate =
-      parseLocalNoonFromIsoDate(oscarEffectiveDate) ||
-      new Date(`March 15, ${activeYear} 12:00:00`);
-
+    // Render countdown immediately with a deterministic fallback (then refine from settings).
     const oscarDayMonthEl = document.getElementById('oscar-date-day-month');
+    const timeLeftEl = document.getElementById('time-left');
+    const fallbackDate = parseLocalNoonFromIsoDate(`${activeYear}-03-15`) || new Date(`March 15, ${activeYear} 12:00:00`);
     if (oscarDayMonthEl) {
       try {
-        oscarDayMonthEl.textContent = targetDate.toLocaleDateString('fr-FR', { day: 'numeric', month: 'long' });
+        oscarDayMonthEl.textContent = fallbackDate.toLocaleDateString('fr-FR', { day: 'numeric', month: 'long' });
       } catch (_) {
         oscarDayMonthEl.textContent = '15 mars';
       }
     }
 
     const currentDate = new Date();
-    const timeDifference = targetDate - currentDate;
-    const daysLeft = Math.floor(timeDifference / (1000 * 60 * 60 * 24));
-    document.getElementById('time-left').textContent = `${daysLeft} jours`;
+    let timeDifference = fallbackDate - currentDate;
+    let daysLeft = Math.floor(timeDifference / (1000 * 60 * 60 * 24));
+    if (timeLeftEl) timeLeftEl.textContent = `${daysLeft} jours`;
+
+    fetchOscarEffectiveDate(activeYear).then((oscarEffectiveDate) => {
+      const targetDate =
+        parseLocalNoonFromIsoDate(oscarEffectiveDate) ||
+        fallbackDate;
+
+      if (oscarDayMonthEl) {
+        try {
+          oscarDayMonthEl.textContent = targetDate.toLocaleDateString('fr-FR', { day: 'numeric', month: 'long' });
+        } catch (_) {}
+      }
+      const now = new Date();
+      timeDifference = targetDate - now;
+      daysLeft = Math.floor(timeDifference / (1000 * 60 * 60 * 24));
+      if (timeLeftEl) timeLeftEl.textContent = `${daysLeft} jours`;
+    }).catch(() => {});
 
     if (token) {
       try {
@@ -186,22 +222,35 @@ window.onload = async function () {
     }
 
     showTableLoading();
+    setInlineLoading(watchedRatioEl);
+    const progressBarEl = document.getElementById('progress-bar');
+    if (progressBarEl) {
+      progressBarEl.classList.add('progress-bar-striped', 'progress-bar-animated');
+    }
 
     let movies = [];
     let watchedMovies = [];
     let watchedMoviesInYear = [];
     let movieImdbIds = new Set();
     try {
-      // Fetch remaining data in parallel (Render latency is high).
-      const [completionModalContent, moviesRes, watchedRes] = await Promise.all([
+      // Start summary fetch immediately so the header can update without waiting for the full list.
+      const summaryPromise = fetchMoviesSummary(activeYear)
+        .then((summary) => {
+          const totalCount = Number(summary?.totalMoviesCount) || 0;
+          const watchedCount = Number(summary?.watchedMoviesCount) || 0;
+          const ratioPct = totalCount > 0 ? ((watchedCount / totalCount) * 100).toFixed(1) : '0.0';
+          if (watchedRatioEl) watchedRatioEl.innerText = `Vu: ${watchedCount} / ${totalCount} (${ratioPct}%)`;
+          updateProgressBar(watchedCount, totalCount, false);
+          return summary;
+        })
+        .catch(() => null);
+
+      // Fetch remaining data in parallel.
+      const [completionModalContent, moviesRes] = await Promise.all([
         fetchCompletionModalContent(),
         fetch(`/api/movies?year=${encodeURIComponent(String(activeYear))}&view=checklist`, {
           method: 'GET',
           headers: { 'Authorization': `Bearer ${token}` }
-        }),
-        fetch('/api/movies/watchedMovies', {
-          method: 'GET',
-          headers: { 'Authorization': `Bearer ${token}` }
         })
       ]);
 
@@ -218,8 +267,11 @@ window.onload = async function () {
       // Sort movies alphabetically by title
       movies.sort((a, b) => a.title.localeCompare(b.title, 'fr', { sensitivity: 'base' }));
 
-      if (watchedRes.ok) {
-        watchedMovies = await watchedRes.json();
+      const summary = await summaryPromise;
+      watchedMovies = Array.isArray(summary?.watchedMovies) ? summary.watchedMovies : [];
+
+      if (progressBarEl) {
+        progressBarEl.classList.remove('progress-bar-striped', 'progress-bar-animated');
       }
     } catch (e) {
       showTableError('Impossible de charger la checklist. Réessaie dans quelques instants.');
@@ -259,10 +311,12 @@ window.onload = async function () {
       frame();
     }
 
-    function updateProgressBar(watchedCount, totalCount) {
+    function updateProgressBar(watchedCount, totalCount, celebrate = true) {
       const progressBar = document.getElementById('progress-bar');
-      const percentage = (watchedCount / totalCount) * 100;
-      console.log(percentage);
+      if (!progressBar) return;
+      const safeTotal = Number(totalCount);
+      const safeWatched = Number(watchedCount);
+      const percentage = safeTotal > 0 && Number.isFinite(safeWatched) ? (safeWatched / safeTotal) * 100 : 0;
       progressBar.style.width = `${percentage}%`;
 
       if (percentage <= 50) {
@@ -273,15 +327,16 @@ window.onload = async function () {
 
       progressBar.setAttribute('aria-valuenow', Math.round(percentage));
 
-      const videoModal = new bootstrap.Modal(document.getElementById("videoModal"));
-
-      if (percentage === 100) {
-        videoModal.show();
-        launchConfetti();
-        const rewardVideo = document.getElementById("rewardVideo");
-        // Only attempt autoplay if we actually have a visible <video>.
-        if (rewardVideo && !rewardVideo.classList.contains('d-none')) {
-          rewardVideo.play().catch(() => {});
+      if (celebrate) {
+        const videoModal = new bootstrap.Modal(document.getElementById("videoModal"));
+        if (percentage === 100) {
+          videoModal.show();
+          launchConfetti();
+          const rewardVideo = document.getElementById("rewardVideo");
+          // Only attempt autoplay if we actually have a visible <video>.
+          if (rewardVideo && !rewardVideo.classList.contains('d-none')) {
+            rewardVideo.play().catch(() => {});
+          }
         }
       }
     }
diff --git a/public/js/app_movies.js b/public/js/app_movies.js
index 7755eb4..4456303 100644
--- a/public/js/app_movies.js
+++ b/public/js/app_movies.js
@@ -10,6 +10,18 @@ window.onload = async function () {
       `;
     }
 
+    function setInlineLoading(el, label = 'Chargement…') {
+      if (!el) return;
+      el.innerHTML = `
+        <span class="d-inline-flex align-items-center gap-2" aria-live="polite" aria-busy="true">
+          <span class="spinner-border spinner-border-sm text-secondary" role="status" aria-label="Chargement">
+            <span class="visually-hidden">Chargement...</span>
+          </span>
+          <span>${label}</span>
+        </span>
+      `;
+    }
+
     function setLoadError(el, message) {
       if (!el) return;
       el.innerHTML = `
@@ -49,28 +61,37 @@ window.onload = async function () {
       return Number.isNaN(d.getTime()) ? null : d;
     }
 
-    async function fetchMoviesLastUpdated(year, token) {
-      const el = document.getElementById('movies-last-updated');
-      if (!el) return;
+    async function fetchMoviesSummary(year, token) {
+      const res = await fetch(`/api/movies/summary?year=${encodeURIComponent(String(year))}`, {
+        method: 'GET',
+        headers: { 'Authorization': `Bearer ${token}` },
+      });
+      if (!res.ok) throw new Error('Failed to fetch movies summary');
+      return await res.json();
+    }
 
-      try {
-        const res = await fetch(`/api/movies/last-update?year=${encodeURIComponent(String(year))}`, {
-          method: 'GET',
-          headers: { 'Authorization': `Bearer ${token}` },
-        });
-        if (!res.ok) return;
+    function applySummaryToHeader(summary) {
+      const lastUpdatedEl = document.getElementById('movies-last-updated');
+      const ratioEl = document.getElementById('watched-ratio');
 
-        const data = await res.json();
-        const lastUpdatedIso = data?.lastUpdated;
-        if (!lastUpdatedIso) return;
-
-        const d = new Date(lastUpdatedIso);
-        if (Number.isNaN(d.getTime())) return;
-
-        el.textContent = d.toLocaleString('fr-FR', { dateStyle: 'medium', timeStyle: 'short' });
-      } catch (_) {
-        // Keep the default placeholder (—)
+      const lastUpdatedIso = summary?.lastUpdated;
+      if (lastUpdatedEl) {
+        if (lastUpdatedIso) {
+          const d = new Date(lastUpdatedIso);
+          if (!Number.isNaN(d.getTime())) {
+            lastUpdatedEl.textContent = d.toLocaleString('fr-FR', { dateStyle: 'medium', timeStyle: 'short' });
+          } else {
+            lastUpdatedEl.textContent = '—';
+          }
+        } else {
+          lastUpdatedEl.textContent = '—';
+        }
       }
+
+      const total = Number(summary?.totalMoviesCount) || 0;
+      const watched = Number(summary?.watchedMoviesCount) || 0;
+      const ratioPct = total > 0 ? ((watched / total) * 100).toFixed(1) : '0.0';
+      if (ratioEl) ratioEl.innerText = `Vu: ${watched} / ${total} (${ratioPct}%)`;
     }
 
     const activeYear = await fetchActiveYear();
@@ -78,24 +99,41 @@ window.onload = async function () {
     const oscarYearEl = document.getElementById('oscar-year');
     if (oscarYearEl) oscarYearEl.textContent = String(activeYear);
 
-    const oscarEffectiveDate = await fetchOscarEffectiveDate(activeYear);
-    const targetDate =
-      parseLocalNoonFromIsoDate(oscarEffectiveDate) ||
-      new Date(`March 15, ${activeYear} 12:00:00`);
-
+    // Render countdown immediately with a deterministic fallback (then refine from settings).
     const oscarDayMonthEl = document.getElementById('oscar-date-day-month');
+    const timeLeftEl = document.getElementById('time-left');
+    const fallbackDate = parseLocalNoonFromIsoDate(`${activeYear}-03-15`) || new Date(`March 15, ${activeYear} 12:00:00`);
     if (oscarDayMonthEl) {
       try {
-        oscarDayMonthEl.textContent = targetDate.toLocaleDateString('fr-FR', { day: 'numeric', month: 'long' });
+        oscarDayMonthEl.textContent = fallbackDate.toLocaleDateString('fr-FR', { day: 'numeric', month: 'long' });
       } catch (_) {
         oscarDayMonthEl.textContent = '15 mars';
       }
     }
+    if (timeLeftEl) {
+      const currentDate = new Date();
+      const timeDifference = fallbackDate - currentDate;
+      const daysLeft = Math.floor(timeDifference / (1000 * 60 * 60 * 24));
+      timeLeftEl.textContent = `${daysLeft} jours`;
+    }
 
-    const currentDate = new Date();
-    const timeDifference = targetDate - currentDate;
-    const daysLeft = Math.floor(timeDifference / (1000 * 60 * 60 * 24));
-    document.getElementById('time-left').textContent = `${daysLeft} jours`;
+    fetchOscarEffectiveDate(activeYear).then((oscarEffectiveDate) => {
+      const targetDate =
+        parseLocalNoonFromIsoDate(oscarEffectiveDate) ||
+        fallbackDate;
+
+      if (oscarDayMonthEl) {
+        try {
+          oscarDayMonthEl.textContent = targetDate.toLocaleDateString('fr-FR', { day: 'numeric', month: 'long' });
+        } catch (_) {}
+      }
+      if (timeLeftEl) {
+        const currentDate = new Date();
+        const timeDifference = targetDate - currentDate;
+        const daysLeft = Math.floor(timeDifference / (1000 * 60 * 60 * 24));
+        timeLeftEl.textContent = `${daysLeft} jours`;
+      }
+    }).catch(() => {});
 
     const token = localStorage.getItem('auth_token');
     if (token) {
@@ -128,21 +166,33 @@ window.onload = async function () {
     const moviesList = document.getElementById('movies-list');
     setLoading(moviesList);
 
-    // Populate "Dernière mise à jour des films" banner (per active year)
-    await fetchMoviesLastUpdated(activeYear, token);
+    // Make header stats feel responsive (these used to wait for the heavy movies payload).
+    setInlineLoading(document.getElementById('movies-last-updated'));
+    setInlineLoading(document.getElementById('watched-ratio'));
+
+    let watchedMoviesInYear = [];
 
     try {
-      // Fetch movies + watched list in parallel (Render latency is high).
-      const [res, watchedRes] = await Promise.all([
-        fetch(`/api/movies?year=${encodeURIComponent(String(activeYear))}`, {
-          method: 'GET',
-          headers: { 'Authorization': `Bearer ${token}` },
-        }),
-        fetch('/api/movies/watchedMovies', {
-          method: 'GET',
-          headers: { 'Authorization': `Bearer ${token}` },
+      // Start summary fetch immediately so header can update ASAP.
+      const summaryPromise = fetchMoviesSummary(activeYear, token)
+        .then((data) => {
+          watchedMoviesInYear = Array.isArray(data?.watchedMovies) ? data.watchedMovies : [];
+          applySummaryToHeader(data);
+          return data;
         })
-      ]);
+        .catch(() => {
+          // Leave the placeholders (—) if summary fails; movies list can still load.
+          const lastUpdatedEl = document.getElementById('movies-last-updated');
+          if (lastUpdatedEl) lastUpdatedEl.textContent = '—';
+          const ratioEl = document.getElementById('watched-ratio');
+          if (ratioEl) ratioEl.textContent = '—';
+          return null;
+        });
+
+      const res = await fetch(`/api/movies?year=${encodeURIComponent(String(activeYear))}`, {
+          method: 'GET',
+          headers: { 'Authorization': `Bearer ${token}` },
+        });
 
       if (!res.ok) {
         localStorage.removeItem('auth_token');
@@ -151,18 +201,12 @@ window.onload = async function () {
       }
 
       const movies = await res.json();
+      // If summary is still in flight, wait for it before rendering watched banners.
+      await summaryPromise;
 
       // Sort movies alphabetically by title (server also sorts, but keep client as a fallback)
       movies.sort((a, b) => a.title.localeCompare(b.title, 'fr', { sensitivity: 'base' }));
 
-      let watchedMovies = [];
-      if (watchedRes.ok) {
-        watchedMovies = await watchedRes.json();
-      }
-
-      const movieImdbIds = new Set(movies.map((m) => m.imdb_id).filter(Boolean));
-      const watchedMoviesInYear = watchedMovies.filter((wm) => movieImdbIds.has(wm.imdb_id));
-
       const totalMoviesCount = movies.length;
       const watchedMoviesCount = watchedMoviesInYear.length;
       const ratioPct = totalMoviesCount > 0 ? ((watchedMoviesCount / totalMoviesCount) * 100).toFixed(1) : '0.0';
diff --git a/routes/movies.js b/routes/movies.js
index 943e6f1..df44231 100644
--- a/routes/movies.js
+++ b/routes/movies.js
@@ -195,6 +195,74 @@ router.get("/last-update", async (req, res) => {
   }
 });
 
+// Get lightweight per-year summary for fast UI (counts, watched-in-year, last update)
+router.get("/summary", async (req, res) => {
+  const token = req.headers.authorization?.split(" ")[1];
+  if (!token) return res.status(401).json({ message: "Token is required" });
+
+  try {
+    const decoded = jwt.verify(token, process.env.JWT_SECRET);
+
+    const year = parseOscarYear(req.query.year);
+    const filter = year ? { year } : {};
+
+    // Base (year-wide) data can be cached (not user-specific).
+    const cacheKey = `movies:summary-base:${year || "all"}`;
+    let base = cacheGet(cacheKey);
+
+    if (!base) {
+      const [idDocs, latestMovie] = await Promise.all([
+        Movie.find(filter).select("imdb_id").lean(),
+        Movie.findOne(filter)
+          .select("updatedAt createdAt")
+          .sort({ updatedAt: -1, createdAt: -1, _id: -1 })
+          .lean(),
+      ]);
+
+      const imdbIds = idDocs.map((d) => d.imdb_id).filter(Boolean);
+      const imdbIdSet = new Set(imdbIds);
+
+      const lastUpdated =
+        latestMovie?.updatedAt ||
+        latestMovie?.createdAt ||
+        (typeof latestMovie?._id?.getTimestamp === "function" ? latestMovie._id.getTimestamp() : null);
+
+      base = {
+        year: year || null,
+        totalMoviesCount: imdbIds.length,
+        imdbIds,
+        // Store ISO string so it's JSON-safe + stable
+        lastUpdated: lastUpdated ? new Date(lastUpdated).toISOString() : null,
+      };
+
+      // Avoid storing a Set in cache (non-serializable and not needed elsewhere)
+      cacheSet(cacheKey, base);
+    }
+
+    const user = await User.findById(decoded.id).select("watchedMovies").lean();
+    if (!user) return res.status(404).json({ message: "User not found" });
+
+    const imdbIdSet = new Set(base.imdbIds || []);
+    const watchedMoviesAll = Array.isArray(user.watchedMovies) ? user.watchedMovies : [];
+    const watchedMoviesInYear = watchedMoviesAll.filter((wm) => imdbIdSet.has(wm.imdb_id));
+
+    // Since this is user-specific, don't encourage shared caching.
+    res.set("Cache-Control", "private, max-age=5");
+    return res.status(200).json({
+      year: base.year,
+      totalMoviesCount: base.totalMoviesCount,
+      watchedMoviesCount: watchedMoviesInYear.length,
+      watchedMovies: watchedMoviesInYear,
+      lastUpdated: base.lastUpdated,
+    });
+  } catch (error) {
+    if (error instanceof jwt.JsonWebTokenError) {
+      return res.status(401).json({ message: "Invalid or expired token" });
+    }
+    return res.status(500).json({ error: error.message });
+  }
+});
+
 // Get watched movies for the user
 router.get("/watchedMovies", async (req, res) => {
   const token = req.headers.authorization?.split(" ")[1]; // Get token from header