Like Mad Max: Fury Road, Austin Powers: The Spy Who Shagged Me was just about the last movie reference I'd expect for a PG film. If Yosemite Sam as Casablanca's Sam was clever, Elmer Fudd as Mini-Me and Sylvester as Mr. Bigglesworth was downright inspired. The fact that neither party knew the other had taken up residence in the Austin Powers world makes the reveal that much funnier.