Due Date nabs Robert Downey, Jr. who will star with Zach Galifianakis in Todd Phillips directed-comedy for Warner Bros. this fall.

Downey will play an expectant father who finds himself on a road trip with a mismatched partner. But he must make it to the birth of his first child and races to get there before its due date. 

I am so happy to see Downy in a comedy again. He has great timing and his energy never stops.

Galifianakis, who starred for Phillips in The Hangover, plays his road trip mate in a comedy that Phillips calls “a buddy comedy without the buddies.”

Shooting starts in September with filming locations being in Atlanta, Arizona and Los Angeles. That’s quite a road trip movie.

(Source)