Try not casting for the name and cast for the part.

People don't give a shit who is in the next big blockbuster like they used to. There was a time when an Arnold movie would be awesome and we would go because it was Arnold. Now I wanna see a nobody that is cast for the character because they are good. Big names destroy the magic, when I see Jack Black is cast I instantly can't think of anything but "You don't always have to fuck her hard"