Todd Phillips directs this road trip comedy starring Robert Downey Jr. and Zach Galifianakis. Businessman Peter Highman (Downey Jr.) is an anxiously expectant first-time father whose wife's due date is only five days away. As Peter rushes to catch a flight home to Los Angeles from Atlanta to be present at the birth, complications arise and he is forced to hitch a ride home with aspiring actor Ethan Tremblay (Galifianakis). The two unlikely companions embark on a frenzied cross-country road trip that will change both of their lives forever. Jamie Foxx and Michelle Monaghan co-star.