In 1999, a low-budget teen comedy put a wicked, winning spin on tried-and-true formula — a group of high school guys make a pact to try to lose their virginity — and led a successful takeover of the waning-millennium American zeitgeist, as embodied by pie fucking and other gross-out gags. Many other movies, from Superbad to, most recently, Project X, have taken up the mantle of American Pie‘s party-hearty, pull-no-punches hormonal comedy, but the original game-changers return in American Reunion, an adequate if not especially memorable get-together. More middling than ineffective — laughs are intermittent but the tone is lively throughout — the film is a reminder that there is a time and season for all things, and some relationships are not meant to last. For the full, original review, from Screen International, click here. (Universal, R, 112 minutes)