http://www.dogheirs.com/tamara/posts/391-dog-sneaks-his-shelter-buddies-out-of-their-kennels-to-party-video
And as one commenter pointed out, the answer to this:
http://www.youtube.com/watch?v=eeSL0pgA1-c
10/16/16: FAIR USE: CRITICISM – Cute clip from a decent movie. (housekeeping)