If you needed an adrenaline boost this morning, then you'll want to check out these new clips from Marc Forster's 'World War Z,' featuring brutal zombie chaos and creepy, rainswept suspense.

In stark contrast to the disconcerting early reports that 'World War Z' was going to be an ungainly mess, the reviews coming in for the Brad Pitt-led film are quite encouraging. Add to that the exciting clips we've been seeing, like yesterday's nail-biting rooftop escape, and it turns out 'World War Z' is one of this summer's more eagerly awaited movies. Today's looks only add to the anticipation.

The first one is an extended clip showing the very beginning of the zombie mayhem, at least from Pitt and his family's perspective. Taking place in Philadelphia, the sequence sports impressive action and pyrotechnics, as well as some pretty brutal zombie attacks. The second clip is a bit more subdued, showing Pitt and a comrade arriving in a rainy, desolate airstrip, accompanied by some gun-toting soldiers.

But we don't have to wait for long to see this film; 'World War Z' held its New York premiere yesterday where thousands of fans screamed Pitt's name, while eagerly awaiting their look at the film. For the rest of us, we'll get to see all the action come Friday, Jun. 21.

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