MUMBAI: Principal photography is underway on Warner Bros. Pictures’ and Legendary Pictures’ Due Date. The film is being directed by Todd Phillips, whose most recent collaboration with Warner Bros. and Legendary, The Hangover, broke box office records this past summer.

Due Date stars Robert Downey Jr and Zach Galifianakis as two unlikely companions who are thrown together on a road trip that turns out to be as life-changing as it is outrageous. Also cast in the film are Michelle Monaghan and Academy Award winner Jamie Foxx, who recently starred alongside Downey in the critically acclaimed The Soloist.

Downey plays Peter Highman, an expectant first-time father whose wife’s due date is a mere five days away. As Peter hurries to catch a flight home from Atlanta to be at her side for the birth, his best intentions go completely awry when a chance encounter with aspiring actor Ethan Tremblay (Galifianakis) forces Peter to hitch a ride with Ethan—on what turns out to be a cross-country road trip that will ultimately destroy several cars, numerous friendships and Peter’s last nerve.

Due Date will be filming in various locations across the USA, including Georgia, New Mexico, Arizona and Los Angeles.

The film is being produced by Phillips and Dan Goldberg, who previously collaborated on The Hangover. Scott Budnick, Thomas Tull and Susan Downey are serving as executive producers on the film.

The movie is currently scheduled for a Fall 2010 release.