Ice Age: Dawn of the Dinosaurs

'After the events of \"Ice Age: The Meltdown\", life begins to change for Manny and his friends: Scrat is still on the hunt to hold onto his beloved acorn, while finding a possible romance in a female sabre-toothed squirrel named Scratte. Manny and Ellie, having since become an item, are expecting a baby, which leaves Manny anxious to ensure that everything is perfect for when his baby arrives. Diego is fed up with being treated like a house-cat and ponders the notion that he is becoming too laid-back. Sid begins to wish for a family of his own, and so steals some dinosaur eggs which leads to Sid ending up in a strange underground world where his herd must rescue him, while dodging dinosaurs and facing danger left and right, and meeting up with a one-eyed weasel known as Buck who hunts dinosaurs intently.'

Ice Age: Dawn of the Dinosaurs, also known as Ice Age 3, is a 2009 3-D computer animated film. It is the third and final installment of the Ice Age series, produced by Blue Sky Studios and distributed by 20th Century Fox. A sneak preview was shown in selected theaters on Father's Day in the United States. The film features the voices of Ray Romano, John Leguizamo, Denis Leary, Queen Latifah, Seann William Scott, Josh Peck, Simon Pegg, and Chris Wedge. The story has Sid being taken by a female Tyrannosaurus rex after stealing her eggs, leading the rest of the protagonists to rescue him in a tropical lost world inhabited by dinosaurs beneath the ice.

Source: Wikipedia