The Magician starring Bill Bixby (specifically the Pilot movie)
The Magician is a beautiful combination of cool and kitsch that would be PERFECT for riffing. It is full of over-the-top ridiculous scenes, like the one where Bixby drives his corvette into his personal jet/"mobile home", or as I like to call it, the World's Most Expensive Garage. Eat your heart out Leno! Long pauses, beautiful magician’s assistants and Lex Luthor’s snooty cousin, “Max Pomeroy”, makes this a movie begging for a riffing.