For the best screenplay written directly for the screen

GLADIATOR
Screenplay by David Franzoni and John Logan and William Nicholson, story by David Franzoni
(© DreamWorks and Universal)

Some of the most direct, concise, and easy-running dialogue ever slung around the coliseum or inner sanctums of the state accompanied by sufficient believable plot manipulation to back it up and make it all seem real. "You are there" goes wild and wonderful.