"Zero Dark Thirty" written by Mark Boal. This is his second WGA nomination. He previously won for "The Hurt Locker."
"The Master" written by Paul Thomas Anderson, who also directed. He has three previous WGA nominations, but no wins.
"Moonrise Kingdom" written by Wes Anderson and Roman Coppola. This is Coppola's first WGA nomination. Anderson was previously nominated for "The Royal Tenenbaums."
"Looper" written by Rian Johnson, who also directed. This is his first WGA nomination.
"Flight" written by John Gatins. This is his first WGA nomination.