Dwayne "The Rock" Johnson is one of the biggest movie stars on the planet, but he was left speechless when a fellow wrestler did the unthinkable on set.
Current WWE star Joe Anoai, better known as Roman Reigns, makes a cameo in the latest Fast and Furious franchise film, Hobbs& Shaw.
Reigns' character is the brother to Johnson's leading role of lawman Hobbs in the movie, which set to hit Australian shores this week.
But before the film premieres, Johnson shared a hilarious behind the scenes video and tale of the duo in action.
A climatic fight scene shows the two behemoths wielding clubs, but Reigns' acting prowess hasn't yet reached the level of Johnson's as he forgot one simple thing.
"We're rehearsing this scene where we're supposed to take our clubs over our head … I pretend to throw my club and I hear, 'oh my God', I turn around and the f***ing camera man is knocked out. Come find out, Joe (nailed) the camera man," Johnson says in the video.
Johnson captioned the video as "one of the funniest f***ing things I've ever seen" and it's hard to argue.
Reigns clearly felt horrible about the insane mishap and apologised profusely to the cameraman who copped the full force of the wooden club and can be heard in the background telling him to take a freebie punch at his face.