Regardless of who the actors are, this is classical Fair Use. The reason you don't see the opposite very often (major media company's materials being used in a

Regardless of who the actors are, this is classical Fair Use. The reason you don't see the opposite very often (major media company's materials being used in a Fair Use manner) is that company's lawyers are smart enough to see it's Fair Use, and that their case would be thrown out of court almost immediately.