In the movie The Great Wall, when a mercenary warrior (Matt Damon) is imprisoned within the Great Wall of China, he discovers the mystery behind one of the greatest wonders of the world.
As wave after wave of marauding beasts besiege the massive structure, his quest for fortune turns into a journey toward heroism as he joins a huge army of elite warriors to confront the unimaginable and seemingly unstoppable force
Max Brooks, (son of actor and director Mel Brooks), who wrote World War Z, wrote The Great Wall.
The beasts in this film are called the taotie, named after an evil fiend in Chinese mythology. Here they are represented as alien beings.
The filmmakers were denied permission to film on the actual Great Wall, so the locations were added digitally.