The comedy, which is set for a February release in the UK, stars Nicholas Hoult, John Malkovich, Rob Corddry, Analeigh Tipton and Dave Franco.
Former Skins actor Hoult stars as R - a zombie who has managed to retain his humanity while succumbing to a plague that has struck much of the population.
R's quest is to save Julie (Teresa Palmer) from the undead, who he begins to fall in love with after he eats her boyfriend's brains and absorbs his memories.
Adapted from Isaac Marion's novel, Warm Bodies is billed as a "zombie love story" and its release was delayed from this year to February 2013.
The film is directed by Jonathan Levine, who won the Audience Award at the 2008 Sundance Film Festival for The Wackness.