Revealing mistakes: In the beginning of the movie, a scene where you can see Lee's face in the mirror of his trailer. It's obviously a cardboard cutout, as the neck below it moves freely about unconnected to the head.
Continuity: Size of footprint on Lee's chest.
Continuity: When Steiner fires his pistol at Billy Lo, the smoke of the bullet impacting the tree appears on the opposite side.
Revealing mistakes: During the last Billy Lo/Steiner fight, Steiner tries to hit Billy with two kicks. Each time we see Billy dodging the kicks, the foot is actually Hakim's.
Continuity: Throughout the final scenes of the movie, spliced-in footage of Bruce Lee does not correspond with doubles. Facing and body orientation relative to his opponent switches from shot to shot.
Continuity: When Billy ascends to the top level of the restaurant to confront Dr. Land, only to find that he has apparently slit his wrists, the boxing bag and staircase from the fight with Hakim can be seen in the spliced-in footage of Bruce Lee.
Continuity: During Billy Lo's fight in the dressing room with "Killer Miller" there is wallpaper in the background of one shot even though the fight is taking place in a room with bare cement walls.
Continuity: When Billy is proceeding to Hakim's level, on the bottom of the staircase, you see Chiech Yuan's body appear out of the blue. Same with when he was fighting the gold belt judo master. At the beginning of when they were fighting, there was no at the bottom but then when Billy is proceeding to the next level, it appears
Continuity: At the beginning of the movie when Billy, Anne and Jim Marshall were talking, Marshall told Billy that Charlie Wang was fished out of the harbour the next day but right when Billy goes to fight Hakim, behind him you see Charlie's dead body lying there.
Continuity: When Billy is thrown over the guy's shoulder, we see the same set of nunchakus from Pasqual's level. Billy threw his nunchakus down on Pasqual but on the second floor when he is fighting the judo guy, they're there again.
Continuity: When Billy goes to the weapons-level, he has a blue bako stick but when the camera goes close up to when billy throws down his nunchakus, the bako becomes green
Revealing mistakes: In the nunchaku scene when Billy and Pasqual are dueling, Billy's second nunchaku bends, revealing it to be foam rubber.