Hotel for Dogs (2009)

Continuity mistake: In the scene where Bruce and Andy are hiding from Animal Control with the dogs, the two Animal Control people step on the "Bone Sweet Bone" pillow and leave a dirty footprint. When Friday goes to get it later, it is clean.

Bernie: You sold a guy a rock in a box for $20.

Trivia: When Andy and Bruce are back home after Dave asks if Andy can come to the party, Andy says she wishes that Bruce can make her a dress. She says that Bruce is a wizard, which is more than a coincidence, since Jake T. Austin also plays main in "Wizards of Waverly Place".

Question: One of the dogs, Chelsea, has only three legs when they find her the first time; obviously she can't run or walk very far, so how did she get back to the at the end of the movie? She wasn't in the van when they were taking the dogs back and the only dog that was left behind was the one that Bernie saw, and Chelsea was there when Bernie was calling out some of the dogs by their names, so where did she come from?