The Original and Adapted Screenplay Contenders were:

Adapted Screenplay

BROKEBACK MOUNTAIN by Larry McMurty/Diana Ossana,
A HISTORY OF VIOLENCE by Josh Olson
CAPOTE by Gerald Clarke/Dan Futterman.
THE CONSTANT GARDENER by Jeffrey Caine
MUNICH by Tony Kushner and Eric Roth

WINNER: Brokeback Mountain by Larry McMurty and Diana Ossana


Original Screenplay

THE SQUID AND THE WHALE by Noah Baumbach
CRASH by Paul Haggis/Robert Moresco
GOOD NIGHT AND GOOD LUCK by George Clooney/Grant Heslov
MATCH POINT by Woody Allen
SYRIANA by Stephen Gaghan

WINNER: Crash by Paul Haggis and Robert Moresco