"Tropic Thunder" is a very stupid movie but has some great funny moments. In particular Robert Downey Jr., Jack Black and Tom Cruise steal the show giving excellent performances for what their role needed to be. The rest of the cast is solid and the direction by Ben Stiller is good. "Tropic Thunder" has its problems but is a fine movie if you want to see a short film (about 100 minutes) and have some laughs. It's not a masterpiece but it does his job.