Thanks to the run-away success of The Hangover, expectations are high for director Todd Phillips. And if actor Robert Downey Jr. is to be believed, Philips’ latest film, Due Date, should live up to those expectations.

The film costars Downey and Zach Galifianakis, who became a household name thanks to his role in The Hangover. The two play a mismatched pair racing across the country to witness the birth of Downey’s character’s first child.

Downey has gone on record claiming the film is “the second greatest movie” he’s made, the first being his role in the 1995 made-for-TV film, “Mr. Willowby’s Christmas Tree.” (/Film)

Watch Planes, Trains, and Automobiles fused with The Hangover after the jump.