First things first: "Tropic Thunder" is not an intentionally mean movie that denigrates the developmentally delayed. It is a comedy that pokes fun at Hollywood's preposterous and stereotypical portrayal of all the people Hollywood thinks it knows but doesn't. A big vulgar, way over-the-top film, it's a series of fun-house mirrors exaggerating the bloated egos of actors, producers, agents, and the never-ending sham that is pretense.