Starring Matt Damon and directed by Zhang Yimou,  "The Great Wall" tells the story of an elite force making a valiant stand for humanity on the world’s most iconic structure.

The trailer which was released on Thursday, July 29, 2016, asks the question “What were they trying to keep out?” And from what viewers get to see, the answer is - monsters.

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The upcoming movie also stars Jing Tian, Pedro Pascal, Willem Dafoe and Andy Lau.

AC$150 million production, "The Great Wall" is set for a December 16 release in China and February 17 in the U.S.