Variety reports that Robert Downey Jr. has struck a deal with Warner Bros. and will star in Due Date with Zach Galifianakis. The comedy, which begins shooting this fall and is scheduled for release sometime in 2010, will see Downey as an expectant father who goes on a road trip in order to make it to the birth of his first-born child.
The movie will be directed by Todd Phillips (Old School, Road Trip) from a script by Alan R. Cohen and Alan Freedland (with revisions by Adam Sztykiel). Phillips' most recent movie, The Hangover, recently became the highest-grossing R-rated comedy ever.