Scott, do yourself a favor and give Tropic Thunder a watch. Cruise plays a supporting character and he's not the focus of the film. I realize that recommending a comedy is dangerous ground, but I (and many others) find the movie hilarious. If you're looking for a good laugh, you could do a lot worse than this.
The opening of Tropic Thunder was really disorienting in an actual movie theater. The audience I was with were confounded for the first couple minutes, until everybody realized what was happening and a wave of laughter swept through the theater. Unfortunately, that part will never play quite the same at home.