Fifteen years ago, 'American Pie' re-defined the genre of raunchy teen comedy and busted some serious pastry-related taboos. The cast has since moved on to adulthood, but last week, Jason Biggs (Jim), Tara Reid (Vicky), John Cho (“MILF guy” John), and Eddie Kaye Thomas (Finch) reunited at the New Beverly Cinema in Los Angeles for a chat about their breakout hit. In honor of the anniversary, the theater treated patrons to a double feature of 'American Pie' and 'American Reunion' (or as Cho called them on Twitter, “the two most important movies ever made”). It’s always fun to see a group of Hollywood’s young pals get back together — more fun than attending your own high school reunion, at least. Here are photos of some other memorable cinematic reunions, from the fashionable and totally fetch teens of 'Mean Girls' to the cruising stoners of 'Dazed and Confused' to the never-say-die gang from 'The Goonies.'