Nobody talks about this one. A 1979 space adventure that commits completely to the bit, three Earth kids stumbling into a princess rescue mission that's exactly as sincere and ridiculous as it sounds, with a planet literally called the giggly planet of happiness and space pirates who actually feel like threats against it. The movie knows what tone it's going for and never blinks. By the time you're watching a space chase sequence that treats a giggling alien princess and three confused Earth teenagers as the emotional center of the universe, you're either completely in or completely out. If you want adventure that trusts its own absurdity, this is it.

Three boys from Earth join forces with a princess from space to defend her cheerful, happy planet from a band of grim, villainous space pirates. Together they travel to her world, launch an assault on the enemy's base and end up fleeing through space with pursuers on their tail. The film is a 1979 science fiction adventure released to mark the Year of Children.