To be fair, I'd give it 3.5.
Synopsis- Joe Cooper (Trey Parker) and Doug Remer (Matt Stone) develop a baseball/basketball combination game in order to outsmart some asshole yuppies, and it turns into the biggest game in America.
Music- It was an exaggerated dramatic score made to underline the absurdity of the movie. It certainly did.
Acting- This is one of the funniest movies I've ever seen in my life. The interesting thing about it was that Trey Parker and Matt Stone didn't write it- the parts were written for them. Instead, this movie was under the wing of the Naked Gun crew. So you get the Naked Gun Lesie Nielson type humor mixed pretty evenly with the South Park humor. In fact, it was a pretty good blend. And we did hear a few different South Park voices break through- Mr. Garrison and Cartman to name two.
Bob Costas also had a small role, which I really liked. There were a lot of celebrity cameos, mostly of sports figures, but most of them were pretty well done, and no more gratuitous than in Dodgeball.
But basically, this movie is insanely, sickeningly funny, as long as you like juvenile humor (although there were a few pretty sharp jokes and gags). I mean, the big touching ending monologue was delivered by a dork in a pineapple suit. That's good shit.
Oh, and this was Robert Vaughn's 100th film. An interesting pick to be his landmark...
Other movies featuring these actors
Trey Parker and Matt Stone- South Park: Bigger Longer and Uncut, Cannibal! The Musical, Orgazmo
Yasmine Bleeth- The Force, Hey Babe!, Heaven or Vegas
Robert Vaughn- Pootie Tang, The Delta Force, Superman III, S.O.B., Demon Seed, The Towering Inferno, The Ten Commandments