Tropic Thunder

A group of self-absorbed actors set out to make the most expensive war film ever. After ballooning costs force the studio to cancel the movie, the frustrated director refuses to stop shooting, leading his cast into the jungles of Southeast Asia, where they encounter real bad guys. Ben Stiller as Tugg Speedman, Robert Downey Jr. as Kirk Lazarus, Jack Black as Jeff Portnoy, Jay Baruchel as Kevin Sandusky, and Brandon T. Jackson as Alpa Chino must rely on their acting skills to survive the real action and danger.