I Was a Teenage Intellectual (Byl jsem mladistvým intelektuálem)(1999)

Pavel and Eva are two teenagers who live a happy life full of McDonald's food, action movies and pop music. But one night, Pavel stumbles upon a secret gathering of intellectuals in the woods on his way to the video store. Not wanting to be discovered, the intellectuals attack him and the chief intellectual bites him in the leg. Some times later, he begins changing... Will the power of television, Eva's love and pop star Michal David's music save him from the intellectuals' evil clutches?

Stay for the after-credits scene at the very end.