I will not give away any jokes here (though too many reviews will), just one small concept: In "Tropic Thunder," Ben Stiller plays a not-very-talented actor who has made a widely loathed movie called "Simple Jack" (explicitly a parody of Sean Penn's "I Am Sam") that flopped ignominiously, failing to earn him the Oscar nomination he so desperately, transparently (and cynically) expected. Both Penn and "I Am Sam" are mentioned by name -- as are the Oscar-winning performances by Dustin Hoffman in "Rain Man" and Tom Hanks in "Forrest Gump." They should have thrown in Robin Williams in "Patch Adams." (Look for the glimpse of Penn and some other well-known actors in award-seeking stunt-roles near the end.)
From start to finish, the target of the satire here is Hollywood. As Roger Ebert describes it: "The movie is a send-up of Hollywood, actors, acting, agents, directors, writers, rappers, trailers and egos..." There's even a funny moment with a key grip that's even funnier if you know what a key grip is.
And yet, according to an article in Monday's New York Times: "A coalition of disabilities groups is expected as early as Monday to call for a national boycott of the film 'Tropic Thunder' because of what the groups consider the movie's open ridicule of the intellectually disabled."
This has got to be a joke.