A group of self-absorbed actors set out to make the most expensive war film.
But 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 says "Tropic Thunder" is a "a comedy about five actors who go on location and find themselves relying on their boot camp experiences when they get stuck in a real war-like situation."
Black will play Jeff "Fats" Portnoy, an overweight gross-out comedian, who's forced to kick his drug addiction while filming on location in the jungle. Downey Jr. will play Kirk Lazarus, the greatest actor of his generation and a four-time Oscar winner.
Baruchel will play Kevin Sandusky, an unknown actor on the set and Stiller plays Speedman.
Starring: Ben Stiller, Jack Black, Robert Downey Jr., Nick Nolte, Brandon Jackson, Steve Coogan, Danny McBride, Bill Hader, Jay Baruchel, Matt Levin, Andrea De Oliveira, Reggie Lee,
Tropic Thunder is released 19th September