In an interview with the Los Angeles Times, the Ultimate Fighting champ explained that he ran into several problems while shooting the movie and isn't keen to repeat the experience.
"[Acting] makes you soft," he said. "You got all these people combing your hair and putting a coat over your shoulders when you're cold. I don't want a coat over my shoulders! I'm a tough-ass motherf**ker!"
Jackson also complained about the Canadian filming location used for the picture, implying that it was not up to his standards.
"Vancouver strikes me as a San Francisco kind of place," he added.
"And I don't want motherf**kers getting ideas about me. I feel in my heart I'm the toughest motherf**ker on the planet. And I don't want nothing changing my train of thought. If you don't believe that when we step inside the [Ultimate Fighting Championship ring], it shows."