Skateboarding Aliens

Fly was just a kid with a skateboard. Suddenly alien kids showed up: "Teach us to skateboard."

Fly looks up while skating and sees a flying saucer crash. Two teen space aliens exit the spaceship the stole from their parents and ask for skateboard lessons. They take Fly and his brother on a joy ride to the Moon to avoid the police, then they are chased by space marauders. This is much more than a fun day skateboarding.