Brad Pitt prepares to battle the walking dead in the first clips from his upcoming zombie flick "World War Z."

Paramount just released two clips from the new movie, highlighting the threat of the infected and the motivation for Pitt's character to try and save the day.

In the video above, we get an extended look at Gerry Lane (Pitt) and his family's first taste of the zombie apocalypse, some of which was seen in previous trailers.

In the second clip, Lane grapples with the choice to help the U.N. tackle the threat head on or stay in protection with his family.

How do you think it looks?

The movie will have its big red carpet premiere in London on Sunday, with Angelina Jolie expected to attend and make her first appearance since announcing she had a double mastectomy

Check back on Sunday for photos from the premiere.

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