diff --git a/script.html b/script.html
index 836778d..8651ac3 100644
--- a/script.html
+++ b/script.html
@@ -205,7 +205,21 @@ function render(r) {
   if (p.status === 'approved' || p.status === 'queued_to_film'
       || p.status === 'filming' || p.status === 'film_failed') {
     var busy = (p.status === 'queued_to_film' || p.status === 'filming');
+    // The opening frame is what carries the animal's likeness into the video.
+    // Without one the model works from the written description and invents a
+    // plausible stranger, so say so before any money is spent.
+    var noFrame = (s.segments || []).filter(function (x) {
+      return x.source !== 'previous' && !x.plate_url;
+    }).map(function (x) { return x.index; });
     film = '<h2 class="sec" style="margin-top:34px">Film it</h2><div class="card">'
+      + (noFrame.length && !busy
+          ? '<div class="warn">Shot' + (noFrame.length > 1 ? 's ' : ' ') + noFrame.join(', ')
+            + ' still ' + (noFrame.length > 1 ? 'have' : 'has') + ' no opening frame. '
+            + 'That frame is what carries your pet&rsquo;s actual likeness — their collar, '
+            + 'their markings, their eyes — into the video. '
+            + 'One will be drawn automatically before filming, which adds about half a minute '
+            + 'per shot. Make them yourself above if you want to see them first.</div>'
+          : '')
       + '<div class="quote" style="margin-bottom:16px">'
       + '<div><div class="big">' + ((p.segments || 4) * 8) + 's</div>'
       + '<div class="sub">of your time credit</div></div>'