Goofs:
Continuity: When Ricardo comes out from behind the curtain the red band on his belt is on the right side. Then when the camera changes it's on the left side. (more)

Trivia:
Ed O'Neill's practice of Brazilian Ju-Jitsu partially inspired Mamet to write the movie. (more)

Filming Locations:
Long Beach, California, USA (more)

Quotes:
[first lines]
Mike Terry: Tie him up.
[to class]
Mike Terry: The hands are not the issue. The fight is the issue. The battle is the issue. Who imposes the terms of the battle will impose the terms of the peace. Think he has a handicap? No. The other guy has a handicap if he cannot control himself. You control yourself, you control him.
[to student]
Mike Terry: Take him to court.
(more)