Oscar nominations 2015: Watch all the trailers for the Best Picture nominees

Video: Watch the trailers for all Oscar nominated Best Pictures here

Ellar Coltrane started filming Boyhood aged seven (Universal)

The nominations for the Oscars have been announced today and seven films will be gunning for this year's top prize, the Oscar for Best Picture.

The favourite with the bookies to take home the gong will be Richard Linklater's coming-of-age film Boyhood. However, it will be pushed hard by two comedies in the form of Alejandro González Iñárritu's Birdman and Wes Craven's The Grand Budapest Hotel.

British leading men Benedict Cumberbatch and Eddie Redmayne will be hoping their films The Imitation Game and The Theory of Everything can sneak a surprise win. While Clint Eastwood's American Sniper and Damien Chazelle's music-based drama Whiplash complete the list of nominees.

Watch all of the nominated films' trailers

American Sniper

Director: Clint Eastwood

Starring: Bradley Cooper, Sienna Miller, Kyle Gallner

Birdman or (The Unexpected Virtue of Ignorance)

Director: Alejandro González Iñárritu

Starring: Michael Keaton, Zach Galifianakis, Edward Norton

Boyhood

Director: Richard Linklater

Starring: Ellar Coltrane, Patricia Arquette, Ethan Hawke

The Grand Budapest Hotel

Director: Wes Anderson

Starring: Ralph Fiennes, F. Murray Abraham, Mathieu Amalric

The Imitation Game

Director: Morten Tyldum

Starring: Benedict Cumberbatch, Keira Knightley, Matthew Goode

The Theory of Everything

Director: James Marsh

Starring: Eddie Redmayne, Felicity Jones, Tom Prior

Whiplash

Director: Damien Chazelle

Starring: Miles Teller, J.K. Simmons, Melissa Benoist