This weekend Due Date, director Todd Phillips’ follow up to his massively successful hit of last year, The Hangover, will be released. The film stars two of Hollywood’s hottest commodities right now, Robert Downey Jr. and Zach Galifianakis, and is likely to become one of the biggest comedy hits of the year. Downey plays a soon-to-be father rushing to get home to his pregnant wife before his child is born. In order to get home as soon as possible, he must get a ride from Galifianakis, a hopeful actor who drives Downey’s character up the wall. Due Date looks like the spiritual successor to Planes, Trains and Automobiles and with the talent involved, shouldn’t have any problems bringing the laughs. But before you run to the theatre this weekend to see Due Date, check out some of these other under-ranked films from the film’s stars.