The movie tells the story of George, a gentle gorilla, and two other animals – a wolf and a crocodile – who morph into monsters after a lab experiment goes wrong. They wreak havoc across the USA and it’s up to primatologist Davis Okoye (Dwayne “The Rock” Johnson) and Dr Kate Caldwill (Naomie Harris) to find an antidote to stop them.
The film is based on a video arcade game of the same name first released in 1986.
It’s the fourth time The Rock and actor Matt Gerald have teamed up for a movie – they previously appeared together in GI Joe: Retaliation, Faster and San Andreas.
Like his character, The Rock is an animallover. He owns several dogs, including a French bulldog named Hobbs, and horses.
The filmmakers decided George would be an albino gorilla to set him apart visually from other gorilla characters in movies.