In the film, Larry Daley (Ben Stiller) is convinced that was born with a big purpose in life, but he never thought it would be that big!
In addition to Stiller, Night at the Museum also stars Carla Gugino, Dick Van Dyke, Mickey Rooney, Bill Cobbs, Ricky Gervais, Kim Raver and Robin Williams.
To watch the trailer for Night at the Museum, which opens in theatres on December 20, click here.