There’s no reason not to say it: Tropic Thunder is a great movie. Everyone does a great job fulfilling their stereotype.
Plus, if you’ve seen any of the war movies it parodies, then you’ll like it that much more.
Also, Tom Cruise did a really good job (intentionally) being a dick producer. Totally makes up for Lions for Lambs (though, not others like craptastic War of the Worlds).
Verdict: 4.5 out of 5. Stiller is of course top-notch and Downey is the personification of method-man extraordinaire. How’d he do research on it? Watch Cosby Kids?