Over the Independence Day Weekend, the giant alien robots managed to fend off the prehistoric Ice Age, but it was a close race, with a difference of just a million dollars.

The Hangover proves to be a lush as it celebrates its second weekend as the box office champ grossing $33.4 million, and Disney/Pixar’s Up easily floats into second place.

The Hangover recovered quickly to take the number one spot at the box office from Disney/Pixar's animated soon-to-be classic Up.