Watching the Ice Age movies in order is a relatively simple task since the beloved animated franchise has followed a linear timeline with its releases. The original Ice Age was helmed by Chris Wedge and follows a wooly mammoth named Manny (Ray Romano), a sloth called Sid (John Leguizamo), and saber-tooth tiger Diego (Dennis Leary) as they team up to protect a human baby. The real breakout star proved to be Scrat, a squirrel looking for a place to bury his acorn. Scrat (voiced by Wedge), was only supposed to be a minor character, but his popularity saw him being given an increased role in the franchise.