I've read that there's a special entry animation you can earn for a Pokemon who completes a movie in a specific way. The animation looks like this:
This is true, my Trubbish has that entry animation, because of her participation in the first Brycen-man movie. Her Rock Blast failed to KO Pawniard, triggering an odd ending for the movie, and subsequently the entry animation in question.
I can help a dull day go by so much faster, For I'm the rhyming fiend known as Missingno. Master.