Clint Eastwood, a man who needs no introduction, has gone through some distinct periods in his career as an actor and filmmaker. Once a rough-and-tough cowboy and later a no-nonsense rebel figure that represented a very specific image of gristly masculinity, Eastwood has since turned the majority of his cinematic attention towards his work behind the camera. Still, there was a time when the man was ubiquitous in a range of action movies, cop flicks, and blood-splat Westerns. Given the magnitude of Eastwood's presence — especially during the '70s, in which he was in high demand — it's unsurprising that the multi-talented star would turn down no small number of projects, though there's one Francis Ford Coppola project that would have undoubtedly looked neat on his resume.