With Clint Eastwood, I thought it'd be Bronco Billy....

As far as other filmmakers, well...

Quentin Tarantino--Death Proof

Francis Ford Coppola--I love his adaptation of Bram Stoker's Dracula but I can't help but wonder why, him being such a talented storyteller in film, he let Keanu Reeves get away with that horrid British accent. How could he miss it?!