Back to The Future Part III Easter Egg - Ah You Haven't Heard of Him Yet

A poster of Revenge of the Creature, along with a poster of the film Tarantula are seen in Back to the Future Part III, right after Doc Brown asks Marty who Clint Eastwood is, Marty replies "That's right; you haven't heard of him yet." This is an ironic coincidence, as Revenge of the Creature and Tarantula are two of Clint Eastwood's first feature film roles. In both he appears, uncredited. In Revenge of the Creature he appears as a lab technician and in Tarantula he appears as a jet pilot.