This is Ben Stiller's Tropic Thunder. It's a Vietnam War film. Except it's actually about the making of a Vietnam War film. Expect it's actually a hilarious satirical comedy about the making of a Vietnam War film. But you already know that of course. The movie works extraordinarily well not just because the jokes fit perfectly with the established subject matter and characters. But because the stellar performances from its A list cast are just sooooo good. And of course, who can forget Tom Cruise dancing in a fat suit. Cinema doesn't get better than this ladies and gentleman.