Filming for the upcoming live-action adaptation of the 1980s arcade video game, "Rampage, " is now underway. The film's star, Dwayne "The Rock" Johnson, has now shared one of the first on-set photos for the upcoming movie, giving fans a glimpse of the action that is to come.

First look

Johnson posted a photo of himself on the set of the upcoming "Rampage" movie with his character bloodied and bruised looking like he just came from a war zone. He is seen sitting in front of the United States Army vehicle. The actor captioned the image by expressing his gratitude to all of the crew members working hard on the movie despite it being a day before the Fourth of July celebrations.

Planned adaptation

Plans to adapt the classic arcade video game, which was originally released in 1986, began sometime in 2011 shortly after Warner Bros. acquired the right to the game. However, it was only back in May that the plot details for the film were revealed. The game itself had no real back story to speak of, but writers were apparently able to pen out a feasible storyline that would explain the giant gorilla, lizard, and werewolf wreaking havoc in the city.

Plot details

Johnson officially revealed the movie's plot two months ago and revealed that he was going to be playing as the character Davis Okoye, who is a primatologist and head of an anti-poaching unit out of Rwanda.

His character is friends with a rare albino gorilla named George, who was apparently injected with an unknown serum that caused it to grow and mutate. An alligator and a wolf were also injected with the same serum and all three beasts are now on their way to completely obliterate the city. Johnson's character is determined to find the ones responsible for mutating his friend, while also trying to find a way to stop the creatures from completely destroying the city.

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Since its release in 1986, the "Rampage" franchise had grown in popularity and was ported to different consoles from the Commodore 64 to the PlayStation 2. It also produced a number of sequels including "Rampage 2: Universal Tour," "Rampage Through Time," "Rampage Puzzle Attack" and the latest game in the series "Rampage: Total Destruction."

"Rampage" is scheduled to hit theaters on April 20, 2018. The movie will also star Naomie Harris, Jeffrey Dean Morgan, Joe Manganiello, Jake Lacy, Malin Åkerman, and Marley Shelton. The monster film is directed by Brad Peyton and written by Ryan Engle.