diff --git a/components/movies/MovieDetails.bs b/components/movies/MovieDetails.bs
index de9f86856..aa2405a4b 100644
--- a/components/movies/MovieDetails.bs
+++ b/components/movies/MovieDetails.bs
@@ -51,6 +51,7 @@ end sub
 ' onMoviePosterSwapAnimationStateChange: Handler for changes to m.moviePosterSwapAnimation.state
 '
 sub onMoviePosterSwapAnimationStateChange()
+    if not isValid(m.moviePosterSwapAnimation) then return
     if LCase(m.moviePosterSwapAnimation.state) <> "stopped" then return
     m.moviePoster.uri = m.moviePosterSwap.uri
     m.moviePoster.opacity = 1