American Pie 2
It's hard to believe that a movie like American Pie 2 requires prior knowledge to be enjoyed. Sure, to place The English Patient in context one should watch Lawrence of Arabia and read Michael Ondaatje's source novel. But a peek-a-boo teen sex flick with required viewing? Unheard of. Oddly enough, you should have seen the first American Pie to make sense of the second. Jokes are relentlessly referenced and all of the original cast is involved in transplanting their naughty hijinks to a lakeside location the first summer after college.
From a reviewer's point of view, the freshness has gone, but the makers of American Pie 2 realize that the appeal of young female flesh is as timeless as high school humor, and fearlessly venture forth into the land of retread. Guaranteed to please by playing the same notes as its predecessor.