SingleClickMovies: Ace Ventura: Pet Detective (1994)

http://www.imdb.com/title/tt0109040/

STORYLINE:To be a Pet Detective, you have to understand both the criminals and animals. Ace Ventura goes even further... He behaves like a criminal animal. When a football team's mascot (a dolphin) is stolen just before the Superbowl, Ace Ventura is put on the case. Now, who would want to steal a dolphin, and why?