If you could replace any actor/actress in a film with someone else, who would you replace, and why?
I'd replace Keanu Reeves in Constantine with Christopher Eccleston. Don't get me wrong, I did enjoy the film as is, but in the canon of the comic, Constantine is supposed to be a hardass Brit with blond short spiky hair. Chris did that look in 28 Days later, and we know he can act and do it well.