Movie PictureAlien vs. Predator: 20th Century Fox has unleashed the second full length trailer for the upcoming battle between 'Aliens' and 'Predators'.

Hitting theaters on August 13th, the iconic monsters from two of the scariest film franchises ever, battle each other on Earth for the first time on film. The discovery of an ancient pyramid buried in Antarctica sends a team of scientists and adventurers to the frozen continent. There, they make an even more terrifying discovery: two alien races engaged in the ultimate battle. No matter who wins, we lose.

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CLICK HERE for access to the new trailer!