You may know David Callaham best for his role as a screenwriter. He has written films such as Godzilla, The Expendables series and Doom. However, you may not know that he is also a BJJ brown belt under Eddie Bravo at 10th Planet. Not only this, but Callaham has also competed in the past, despite his Hollywood roots. This is somewhat unusual for celebrities who usually steer clear of that sort of culture.
Funnily enough, Callaham also wrote the screenplay for the 2021 Mortal Kombat movie. It will be interesting to see whether Callaham adds BJJ to the film. As you may expect, Mortal Kombat usually features fight scenes, but to date, there hasn’t been much BJJ in the series. Perhaps Callaham will change this.