diff --git a/api/video/discover.py b/api/video/discover.py
index 7ba6c450..396a282a 100644
--- a/api/video/discover.py
+++ b/api/video/discover.py
@@ -186,6 +186,8 @@ def register_routes(bp):
         decade = request.args.get("decade") or None
         providers = request.args.get("providers") or None
         sort = request.args.get("sort") or "popularity.desc"
+        lang = (request.args.get("lang") or "").strip() or None       # original-language filter
+        hide_owned = (request.args.get("hide_owned") or "") in ("1", "true", "yes")
 
         def fetch(p):
             if key == "trending":
@@ -193,19 +195,31 @@ def register_routes(bp):
             if key:
                 return eng.discover_curated(key, page=p)
             return eng.discover_filter(kind, genre=genre, year=year, decade=decade,
-                                       providers=providers, sort_by=sort, page=p)
+                                       providers=providers, sort_by=sort, page=p, language=lang)
 
         try:
             items, seen = [], set()
-            for p in range(page, page + pages):
-                for it in (fetch(p) or []):
+            # Hiding owned + a huge library means most popular titles are already owned, so
+            # page DEEPER and drop owned server-side until the rail has enough un-owned to
+            # look full (instead of the client CSS-hiding most of a 2-page batch to nothing).
+            target = 24 if hide_owned else 0
+            max_pages = 8 if hide_owned else pages
+            for offset in range(max_pages):
+                batch = fetch(page + offset) or []
+                for it in batch:
                     dk = (it.get("kind"), it.get("tmdb_id"))
                     if dk in seen:
                         continue
                     seen.add(dk)
+                    if hide_owned and it.get("library_id") is not None:
+                        continue
                     items.append(it)
-                if key == "trending":
-                    break        # trending is a fixed list — extra pages just repeat it
+                if key == "trending" or not batch:
+                    break        # trending is a fixed list; empty batch = TMDB ran out
+                if target and len(items) >= target:
+                    break        # enough un-owned collected
+                if not hide_owned and offset + 1 >= pages:
+                    break        # normal mode: respect the requested page count
             return jsonify({"items": items, "page": page})
         except Exception:
             logger.exception("discover list failed (key=%s)", key)
diff --git a/core/video/enrichment/clients.py b/core/video/enrichment/clients.py
index 31e94bdd..3b93adf9 100644
--- a/core/video/enrichment/clients.py
+++ b/core/video/enrichment/clients.py
@@ -512,9 +512,11 @@ class TMDBClient:
         return self._disc_map((r.json() or {}).get("results"), kind)
 
     def discover(self, kind, *, genre=None, year=None, decade=None, providers=None,
-                 sort_by="popularity.desc", page=1, region="US"):
+                 sort_by="popularity.desc", page=1, region="US", language=None):
         """Browse /discover/{movie,tv} filtered by genre / year / decade / streaming
-        provider (``providers`` is a TMDB provider id; needs ``region``)."""
+        provider (``providers`` is a TMDB provider id; needs ``region``). ``language``
+        restricts to an original-language (ISO-639-1, e.g. 'en') so general rails aren't
+        flooded with foreign-language titles; pass a non-English code for a foreign rail."""
         if not self.api_key:
             return []
         import requests
@@ -522,6 +524,8 @@ class TMDBClient:
         path = "/discover/movie" if is_movie else "/discover/tv"
         params = {"api_key": self.api_key, "sort_by": sort_by, "page": page,
                   "include_adult": "false", "vote_count.gte": 40}
+        if language:
+            params["with_original_language"] = language
         if genre:
             params["with_genres"] = genre
         if providers:
diff --git a/core/video/enrichment/engine.py b/core/video/enrichment/engine.py
index fb29ed02..da69ecb9 100644
--- a/core/video/enrichment/engine.py
+++ b/core/video/enrichment/engine.py
@@ -363,21 +363,21 @@ class VideoEnrichmentEngine:
         return self._stamp_owned(items)
 
     def discover_filter(self, kind, *, genre=None, year=None, decade=None, providers=None,
-                        sort_by="popularity.desc", page=1) -> list:
-        """Browse /discover filtered by genre / year / decade / streaming provider,
-        cached + owned-annotated."""
+                        sort_by="popularity.desc", page=1, language=None) -> list:
+        """Browse /discover filtered by genre / year / decade / streaming provider /
+        original language, cached + owned-annotated."""
         w = self.workers.get("tmdb")
         if not w or not w.enabled:
             return []
         if kind not in ("movie", "show"):
             kind = "movie"
-        ck = ("disc-flt", kind, genre, year, decade, providers, sort_by, page)
+        ck = ("disc-flt", kind, genre, year, decade, providers, sort_by, page, language)
         items = self._cache_get(ck)
         if items is None:
             try:
                 items = w.client.discover(kind, genre=genre, year=year, decade=decade,
                                           providers=providers, sort_by=sort_by, page=page,
-                                          region=self._region()) or []
+                                          region=self._region(), language=language) or []
                 self._cache_put(ck, items, ttl=3600)
             except Exception:
                 logger.exception("discover filter failed (%s g=%s y=%s d=%s p=%s)",
diff --git a/webui/static/video/video-discover.js b/webui/static/video/video-discover.js
index dd058cb3..503f79cc 100644
--- a/webui/static/video/video-discover.js
+++ b/webui/static/video/video-discover.js
@@ -72,10 +72,19 @@
         'talk': '148, 163, 184', 'news': '148, 163, 184',
     };
     var DECADE_RAILS = [
-        { title: 'Best of the 2010s', q: 'kind=movie&decade=2010&sort=vote_average.desc' },
-        { title: '2000s Favorites', q: 'kind=movie&decade=2000&sort=vote_average.desc' },
-        { title: '’90s Classics', q: 'kind=movie&decade=1990&sort=vote_average.desc' },
-        { title: 'Retro ’80s', q: 'kind=movie&decade=1980&sort=vote_average.desc' },
+        { title: 'Best of the 2010s', q: 'kind=movie&decade=2010&sort=vote_average.desc&lang=en' },
+        { title: '2000s Favorites', q: 'kind=movie&decade=2000&sort=vote_average.desc&lang=en' },
+        { title: '’90s Classics', q: 'kind=movie&decade=1990&sort=vote_average.desc&lang=en' },
+        { title: 'Retro ’80s', q: 'kind=movie&decade=1980&sort=vote_average.desc&lang=en' },
+    ];
+    // Dedicated foreign-language rails so non-English titles live HERE rather than
+    // leaking into the general genre/decade rails (which are pinned to lang=en).
+    var FOREIGN_RAILS = [
+        { title: 'Korean Cinema', q: 'kind=movie&sort=popularity.desc&lang=ko' },
+        { title: 'Japanese Films', q: 'kind=movie&sort=popularity.desc&lang=ja' },
+        { title: 'Spanish-Language', q: 'kind=movie&sort=popularity.desc&lang=es' },
+        { title: 'French Cinema', q: 'kind=movie&sort=popularity.desc&lang=fr' },
+        { title: 'Hindi Cinema', q: 'kind=movie&sort=popularity.desc&lang=hi' },
     ];
 
     function buildShelfList() {
@@ -84,19 +93,19 @@
         // personalized first — seeded from what you actually own
         (state.taste.movie || []).slice(0, 3).forEach(function (name) {
             var id = gm[name.toLowerCase()];
-            if (id != null) { out.push({ title: 'Because you like ' + name, q: 'kind=movie&genre=' + id + '&sort=popularity.desc' }); used['m:' + name.toLowerCase()] = 1; }
+            if (id != null) { out.push({ title: 'Because you like ' + name, q: 'kind=movie&genre=' + id + '&sort=popularity.desc&lang=en' }); used['m:' + name.toLowerCase()] = 1; }
         });
         (state.taste.show || []).slice(0, 2).forEach(function (name) {
             var id = gs[name.toLowerCase()];
-            if (id != null) { out.push({ title: 'More ' + name + ' shows', q: 'kind=show&genre=' + id + '&sort=popularity.desc' }); }
+            if (id != null) { out.push({ title: 'More ' + name + ' shows', q: 'kind=show&genre=' + id + '&sort=popularity.desc&lang=en' }); }
         });
         out = out.concat(CURATED);
         GENRE_RAILS.forEach(function (name) {
             var id = gm[name.toLowerCase()];
             if (id != null && !used['m:' + name.toLowerCase()])
-                out.push({ title: name, q: 'kind=movie&genre=' + id + '&sort=popularity.desc' });
+                out.push({ title: name, q: 'kind=movie&genre=' + id + '&sort=popularity.desc&lang=en' });
         });
-        return out.concat(DECADE_RAILS);
+        return out.concat(DECADE_RAILS).concat(FOREIGN_RAILS);
     }
 
     // ── card (mirrors the search title card: owned ribbon + get button) ───────
@@ -334,12 +343,18 @@
         }, { rootMargin: '400px 0px' });
         for (var j = 0; j < shelves.length; j++) state.io.observe(shelves[j]);
     }
+    function isHideOwned() {
+        var h = $('[data-vdsc-hideowned]');
+        return !!(h && h.checked);
+    }
     function fillShelf(shelf) {
         if (!shelf || shelf.getAttribute('data-vdsc-loaded')) return;
         shelf.setAttribute('data-vdsc-loaded', '1');
         var rail = $('[data-vdsc-rail]', shelf);
-        // 2 pages (~40 items) so a rail still looks full after 'Hide owned'.
-        cachedFetch(LIST_URL + '?' + shelf.getAttribute('data-vdsc-q') + '&pages=2')
+        // Normal: 2 pages (~40 items). Hiding owned: let the backend page DEEPER and drop
+        // owned server-side, so a huge library's rail still fills instead of CSS-hiding to ~nothing.
+        var q = shelf.getAttribute('data-vdsc-q') + (isHideOwned() ? '&hide_owned=1' : '&pages=2');
+        cachedFetch(LIST_URL + '?' + q)
             .then(function (d) {
                 var items = (d && d.items) || [];
                 if (!items.length) { shelf.remove(); return; }    // drop empty shelves
@@ -507,6 +522,11 @@
             hide.addEventListener('change', function () {
                 page.classList.toggle('vdsc-hide-owned', hide.checked);
                 try { localStorage.setItem('vdsc_hideowned', hide.checked ? '1' : '0'); } catch (e) { /* ignore */ }
+                // The rails are now server-filtered for owned (and page deeper), so rebuild
+                // them with the new state instead of just CSS-hiding cards in place.
+                renderShelves();
+                loadMoreLike();
+                loadGaps();
             });
         }
         // Infinite scroll: a sentinel near the grid bottom pulls the next page.