diff --git a/update_hidden_themes.py b/update_hidden_themes.py
new file mode 100644
index 0000000..1b6a5f2
--- /dev/null
+++ b/update_hidden_themes.py
@@ -0,0 +1,63 @@
+from collections import OrderedDict
+
+from vcinema_utils import VCinemaUtils
+
+# Page ID of https://wiki.jacknet.io/books/vcinema/page/films-by-reference
+HIDDEN_THEMES_PAGE_ID = 63
+
+
+def get_hidden_themes(viewings, token_id, token_secret):
+    # Bit horrible to need to request this again, but it affects the order of the result table
+    viewings_ungrouped = VCinemaUtils.get_vcinema_viewings(token_id, token_secret, combine_repeat_viewings=False)
+
+    # Copy keywords from grouped viewings to ungrouped viewings
+    for viewing_ungrouped in viewings_ungrouped:
+        for viewing in viewings:
+            if viewing['imdb_id'] == viewing_ungrouped['imdb_id']:
+                if 'keywords' in viewing:
+                    viewing_ungrouped['keywords'] = viewing['keywords']
+                    break
+
+    viewings_filtered_watch_date = VCinemaUtils.filter_viewings(viewings_ungrouped, "date_watched")
+
+    for date, viewings in viewings_filtered_watch_date.items():
+        viewing_dict = {"viewings": viewings}
+
+        viewings_filtered_watch_date[date] = viewing_dict
+
+    # Add hidden themes
+    for date, data in viewings_filtered_watch_date.items():
+        hidden_themes = set()
+
+        if len(data['viewings']) > 1:
+            viewings_keywords = []
+
+            for viewing in data['viewings']:
+                if 'keywords' in viewing:
+                    viewings_keywords.append(set(viewing['keywords']))
+
+            if len(viewings_keywords) > 1:
+                hidden_themes = set.intersection(*viewings_keywords)
+
+        if hidden_themes != set():
+            viewings_filtered_watch_date[date]['hidden_themes'] = list(hidden_themes)
+
+    return viewings_filtered_watch_date
+
+
+def build_page(hidden_themes):
+    hidden_themes = OrderedDict(sorted(hidden_themes.items(), key=lambda t: t[0]))
+
+    table = "| Date | Films | Hidden Themes |\n| - | - | - |"
+
+    for date, data in hidden_themes.items():
+        table += "\n"
+
+        row_data = []
+        row_data.append(str(date))
+        row_data.append(VCinemaUtils.get_film_list(data['viewings']))
+        row_data.append((k for k in sorted(data['hidden_themes'])) if 'hidden_themes' in data else "N/A")
+
+        table += " | ".join(row_data)
+
+    return table