Spaceballs

When the evil Dark Helmet (Moranis) attempts to steal all the air from planet Druidia, a determined Druish Princess (Daphne Zuniga), a clueless rogue (Pullman) and a half-man/half-dog creature who's his own best friend (Candy) set out to stop him! But with the forces of darkness closing in on them at ludicrous speed, they'll need the help of a wise imp named Yogurt (Brooks) and the mystical power of "The Schwartz" to bring peaceand merchandising rightsto the entire galaxy! (official distributor synopsis)