Innocent in every way, like apple pie and Chevrolet...
Made for just $10 million, American Pie went on to gross over $235 million and become a billion dollar franchise, continuing with three big screen sequels and four straight-to-DVD movies. It was the sleeper hit of 1999 that no one saw coming, especially the studio, Universal, which sold off the foreign rights in an attempt to recoup its budget. (Big mistake. Huge.)
Unlike its fellow '99 teen comedies (She's All That, 10 Things I Hate About You, etc.), American Pie wasn't afraid to talk about sex, with the film focusing on five best friends' quest to love their respective virginities before the end of high school. (Warm apple pies do not count.)