Robert Downey Jr. and Zach Galifianakis join forces with The Hangover team for a raucous Odd Couple road trip in Due Date.The movie and the mayhem hit theaters Friday, but what's Due Date all about?

The character Galifianakis plays in “Due Date,” a wannabe actor named Ethan Tremblay, is not hugely different from other good-natured stoner screw-ups he has played, but Galifianakis’ deep ...

Expectant first time father Peter Highman hurries to get home to be at his wife's side for the birth, although his best intentions go awry when an encounter with Ethan Tremblay forces Peter to hitch a ...

Sometimes. But when Peter pushes Ethan into improvs to prove he can act, or the two just let their emotions bleed, Galifianakis and Downey gift Due Date with something rare in any kind of movie: a ...

Robert Downey Jr. as Peter Highman and Zach Galifianakis as Ethan Tremblay in “Due Date.” By The Orlando Sentinel | The Orlando Sentinel. UPDATED: May 4, 2016 at 11:52 PM MDT ...

If Downey's Peter Highman just wants to get from Atlanta to L.A. in time for the birth of his first child, Galifianakis' Ethan Tremblay is an aspiring actor who's on his way to Hollywood with a ...

In “Due Date,” Peter, an expectant father played by Robert Downey Jr., hurries home to be by his wife’s side for the birth of their first child. His race back to Los Angeles is interrupted by a random ...

And it's not as if "Due Date" was all that complicated — it shouldn't have been so difficult to get right. It's a simple mismatched-buddy road trip movie, the kind you've seen countless times.

Zach Galifianakis as Ethan Tremblay in the new comedy "Due Date," also starring Robert Downey Jr. and Jamie Foxx and in theaters Nov. 5, 2010.. Credit: Warner Bros. Pictures ...

It's called "Due Date," a film bound to be a contender for Xerox Movie of the Year. The "original," dating from 1987, stars Steve Martin as an uptight businessman trying to get home for Thanksgiving.