Spaceballs

When the evil Dark Helmet attempts to steal all the air from planet Druidia, a determined Druish Princess, a clueless rogue and a half-man/half-dog creature who's his own best friend 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 and the mystical power of "The Schwartz" to bring peace and merchandising rights to the entire galaxy!