Birdman is set to take flight at the Oscars having received an additional boost to its chances by winning the highest accolade at the Producers Guild of America awards.
Last night's Los Angeles awards are a key predictor of Academy Awards success as many of the PGA members are also Oscars voters, and for the past seven years the choices for its top trophy went on to win the best-picture prize.
The win for Alejandro Inarritu’s comedy starring Michael Keaton follows its defeat to the Grand Budapest Hotel at the Golden Globes earlier this month.
Other films that were up for the PGA's top honour this year included American Sniper, Boyhood, Foxcatcher, Gone Girl, The Grand Budapest Hotel, The Imitation Game, Nightcrawler, The Theory of Everything and Whiplash.
Notably absent from the nominees was Selma, which had been named among the year's best films by various industry groups, including an Oscar nomination.
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
Other trophies presented last night included The Lego Movie for animated feature – which was another notable absence from the Oscar nominations - Life Itself for documentary film, Fargo for television movie or miniseries, Breaking Bad for TV drama series, Orange is the New Black for TV comedy series and Comedians in Cars Getting Coffee for digital series.
Next up on the pre-Oscar awards circuit are tonight's Screen Actors Guild Awards. The 87th annual Academy Awards will be presented on 22 February.
Additional reporting by PA