Wes Anderson's Oscar-nominated eccentric caper The Grand Budapest Hotel won the top film prize at the Writers Guild Awards on Saturday, amid a sharp-witted show attended by Hollywood's scriptwriters.
The Grand Budapest Hotel, up for nine Oscars including best picture 22 February, beat frontrunner, Richard Linklater's Boyhood, for best screenplay.
Anderson accepted his award by quipping that the location of the awards show, held in a hotel in the Century City neighborhood of Los Angeles, "was formerly was the backlot of one of the great cinema studios and now home to this wonderful Hyatt, filled with entertainment attorneys."
Graham Moore from The Imitation Game, about British World War Two Nazi code breaker Alan Turing, won best adapted screenplay and dedicated his award to the late Turing, who died in 1954 having been persecuted for his homosexuality.
"He was probably the greatest genius of his generation and I am a screenwriter from Chicago. So it's very strange to be standing on stage now when he should be," Moore said.
Oscars 2015 nominations
Oscars 2015 nominations
1/28 Birdman - 10 nominations
Academy Award nominated for Best Picture, Best Supporting Actress (Emma Stone), Best Actor (Michael Keaton), Sound Editing, Sound Mixing, Cinematography, Original Screenplay, Best Director (Alejandro González Iñárritu)
2/28 The Grand Budapest Hotel - 10 nominations
Academy Award nominated for Best Director (Wes Anderson), Best Picture, Film Editing, Production Design, for Makeup and Hairstyling, Costume Design, Cinematography, Original Screenplay, Original Score
3/28 The Imitation Game - 8 nominations
Academy Award nominated for Best Picture, Best Actor (Benedict Cumberbatch), Best Supporting Actor ( Keira Knightley) Best Director (Morten Tyldum), Film Editing, Production Design, Adapted Screenplay, Original Score
4/28 American Sniper - 6 nominations
Oscar nominated for Best Picture, Best Actor (Bradley Cooper), Film Editing, Sound Mixing, Adapted Screenplay
5/28 Boyhood - 6 nominations
Academy Award nominated for Best Picture, Actress in Supporting role (Patricia Arquette) Film Editing, Best Director (Richard Linklater), Original Screenplay
6/28 Whiplash - 5 nominations
Academy Award nominated for Best Picture, Film Editing, Sound Mixing, Adapted Screenplay
7/28 The Theory of Everything - 5 nominations
Oscar nominated for Best Picture, Best Actor (Eddie Redmayne), Best Actress (Felicity Jones), Adapted Screenplay, Original Score
Working Title Films
8/28 Foxcatcher - 5 nominations
Oscar nominated for Best Director (Bennett Miller), Best Actor (Steve Carrell), Original Screenplay, Makeup and Hairstyling
9/28 Selma - 2 nominations
Oscar nominated for Best Picture and Best Original Song
10/28 Mr Turner
Oscar nominated for Production Design, Costume Design, Cinematography, Original Score
Reese Witherspoon is Oscar-nominated for best actress in a leading role and Laura Dern is nominated for best supporting actress
12/28 Two Days, One Night
Marion Cotillard has been nominated in the best actress category
Oscar nominated for Original Screenplay
14/28 Gone Girl
Rosamund Pike is Oscar nominated for best actress in a leading role
Twentieth Century Fox
Nominated for Visual Effects, Sound Editing, Production Design, Sound Mixing, Original Score
16/28 Still Alice
Best actress in a leading role nomination for Julianne Moore
17/28 The Hobbit: The Battle of Five Armies
Oscar nominated for Sound Editing
18/28 Into The Woods
Oscar nominated for Production Design, Costume Design, Best Supporting Actress (Meryl Streep)
19/28 Captain America: The Winter Soldier
Robert Redford and Chris Evans film is nominated for Special Effects
20/28 Dawn of the Planet of the Apes
Nominated for an Oscar in the Visual Effects category
20th Century Fox
21/28 The Lego Movie
Oscar nominated for best song 'Everything Is Awesome' but snubbed in best animation category
22/28 X-Men, Days of the Future Past
Oscar nominated in the Visual Effects category
Alan Markfield / 2013 Marvel & Subs / 20th Century Fox Film Corp.
23/28 Begin Again
Keira Knightley and Mark Ruffalo in Begin Again which is Oscar nominated for best original song
24/28 Guardians Of The Galaxy
Nominated for Visual Effects, for Makeup and Hairstyling
Oscar nominated for Sound Editing, Sound Mixing, Cinematography
26/28 How To Train Your Dragon 2
Oscar nominated for Animated Feature Film
Oscar nominated for Costume Design
© Disney Enterprises, Inc.
28/28 Inherent Vice
Oscar nominated for Adapted Screenplay
Hosted by Friends and The Comeback star Lisa Kudrow, the awards, voted for by the members of the Writers Guild of America, has had mixed results in predicting the best screenplay Oscars awards.
Last year, Spike Jonze's Her won both the Writers Guild Award (WGA) and the Oscar for best adapted screenplay, but the WGA for best original screenplay went to Billy Ray's Captain Phillips while John Ridley won the Oscar for 12 Years a Slave.
In the best documentary screenplay category, Oscar nominees Finding Vivian Maier and Last Days in Vietnam lost out to The Internet's Own Boy: The Story of Aaron Swartz.
HBO's gritty crime thriller True Detective won both best new series and best drama series for its creator Nic Pizzolatto, while FX's Louie won best comedy series for its creator and star Louis C.K. and writer Pamela Adlon.
Grey's Anatomy creator Shonda Rhimes received a lifetime achievement award for her television work and spoke of the need for more diversity in Hollywood.
Actor-director Ben Affleck was honored for his humanitarian work with the Eastern Congo Initiative, aiming to improve the economy and hardships of the war-torn region.
The late Harold Ramis, the writer-director of films such as Caddyshack, Groundhog Day and as Dr Egon Spengler in Ghostbusters, received the Laurel award for screenwriting achievement, accepted by his family on his behalf.