'Birdman' won Best Feature at the Independent Spirit Awards 2015.

The Michael Keaton-fronted drama beat off competition from Richard Linklater's acclaimed 'Boyhood' to win the top prize at the ceremony which was held in Santa Monica, California, yesterday (21.02.15).

Keaton, 63, also took home the Best Actor Award for his portrayal of washed-up actor, Riggan, in the film, while Emmanuel Lubezki was honoured for his cinematography on the Oscar-nominated picture.

However, Linklater wasn't left disappointed after beating 'Birdman' director Alejandro Gonzalez Iñárritu in the Best Director category.

Oscar-nominated Julianne Moore took home Best Actress for her role as Alzheimer's sufferer Dr Alice Howland in 'Still Alice', while Best Supporting Female went to Patricia Arquette for 'Boyhood', who has already picked up the Best Actress Golden Globe, BAFTA and Screen Actors Guild Award for her performance.

Best Supporting Male went to J.K. Simmons for his role as music teacher, Fletcher, in the drama 'Whiplash'.

The Independent Spirit Awards 2015 winners list:

Best Feature:

Birdman

Best Director:

Richard Linklater - Boyhood

Best Female Lead:

Julianne Moore - Still Alice

Best Male Lead:

Michael Keaton - Birdman

Best Supporting Female:

Patricia Arquette - Boyhood

Best Supporting Male:

J.K. Simmons - Whiplash

Best Screenplay:

Dan Gilroy - Nightcrawler

Best First Feature:

Nightcrawler

Best First Screenplay:

Justin Simien - Dear White People

John Cassavetes Award:

Land Ho!

Best Cinematography:

Emmanuel Lubezki - Birdman

Best Editing:

Tom Cross - Whiplash

Best Documentary:

Citizenfour

Best International Film:

Ida (Poland)

Robert Altman Award:

Inherent Vice

Special Distinction Award:

Foxcatcher