Clint Eastwood
Clint Eastwood made waves in the film industry primarily as an actor, winning Best Actor at the Academy Awards. However, he also had a career behind the lens, like in his directorial masterpiece Jersey Boys. It's rumored that the producers wanted Eastwood to make a cameo dancing in the street, to which he responded: "No, a man must know his limitations.” Instead, one of the characters just had his show on in the background of a scene.