The Wild(2006)

In a New York City zoo, Samson the Lion is telling his son Ryan stories of how he used to hunt during his adventures in the wild. Despite his fathers tips, Ryan can only do so much as growl quietly. After even the slightest growl angers a group of gazelles, Samson scolds his son who feels ashamed because his father has the status of "Samson the Wild" while he is the cute one. One night, Ryan is accidently shipped away in the legendary "green boxes" which are said to take animals out into the wild. Samson and a group of his friends must now sneak out of the city and venture into the African wilderness to rescue him.