Winner
The Departed
Screenplay by William Monahan
Nominees
Borat Cultural Learnings of America for Make Benefit Glorious Nation of Kazakhstan
Screenplay by Sacha Baron Cohen, Anthony Hines, Peter Baynham, & Dan Mazer; Story by Sacha Baron Cohen, Peter Baynham, Anthony Hines, & Todd Phillips
Children of Men
Screenplay by Alfonso Cuarón, Timothy J. Sexton, David Arata, Mark Fergus and Hawk Ostby
Little Children
Screenplay by Todd Field & Tom Perrotta
Notes on a Scandal
Screenplay by Patrick Marber