"World War Z" is almost upon us, and the latest clip launches us right into the middle of the action.

The following teaser gives us a closer look at an early scene in the movie in which Gerry Lane (Brad Pitt) and his wife Karin (Mireille Enos) flee their apartment with their two daughters. There's a helicopter headed their way, but first Gerry and his family have to outrun the ambulatory undead quickly shuffling after them. Although no one says the z-word in the preview, it's clear the creatures in hot pursuit are definitely not normal.

Despite all the behind-the-scenes chatter about last-minute problems with the film, it's been getting solid early reviews from critics in the United States and the UK. Super-fans in select cities can also purchase a $50 "Mega Ticket" that comes with a few extra goodies, including a digital download or stream of "World War Z" once it comes out on DVD and Blu-ray. With this deal available in only five U.S. theaters, it appears Paramount is testing the waters for future "Mega Ticket" offers.

The hotly anticipated undead invasion begins June 21, when "World War Z" hits theaters.

'World War Z' Mega Movie Tickets Available

World War Z Movie Poster
World War Z
Based on 46 critics

When former U.N. investigator Gerry Lane (Brad Pitt) and his family get stuck in urban gridlock, he senses... Read More