Under pressure from the studio, in an effort to cut two million dollars out of the budget, director Michael Schultz and screenwriter Louis Venosta sat up in a hotel room all night rewriting the script. When Venosta fell asleep on the hotel bed, Schultz pressed a button on the computer which deleted forty pages of the script. When Venosta awoke that morning, the pair spent the day recreating that material from what they could remember.
Taimak had previously trained under the martial arts choreographer of the movie, Ron Van Clief, who founded Chinese Goju (the martial art that Leroy studies in the film). The part of the opening scene where Leroy breaks the arrow in the air was real and took several hours of filming to get it right.
In the final fight scene where "Sho-nuff" has Leroy by the hair and ask's him "Who's the one and only master?", although the camera is facing the back of shogun's head, if you look at his mouth, you can clearly see that they edited out the obsenity that he really used in this scene.
Ironically, Shonuff would use essentially the same obscenity seconds later when he pleaded for Leroy to let go of his fist.