Wet Dreams

Wet Dreams is a 2002 South Korean film. Inspired partly by American gross-out comedies like American Pie, it follows the sexual misadventures of four boys through middle and high school. While American Pie had been a flop in Korea, Wet Dreams was a surprise box office hit and led to a sequel, Wet Dreams 2.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.