Deliberate mistake: During the big gun battle right before the last fight scene, Riggs is shown driving a forklift, and knocking over some barrels on top of Wah Sing Ku, leader of the Triads. When the forklift does the 180° turn, you can CLEARLY see that it is not Mel Gibson, but an Asian stunt man.
Continuity mistake: During the car chase involving the car driven by the Chinese guy, Murtaugh, and the mobile home, the two cars slide against each other and the right wing mirror on Murtaugh's car is completely wrecked. Once the two cars are separated the wing mirror has miraculously repaired itself. The left wing mirror also does a disappearing / reappearing trick.
Continuity mistake: In the scene near the end of the film when Murtaugh shoots at Wah Sing Ku and mistakenly kills the last of the four fathers, you can clearly hear an empty shell casing hit the floor, although he is using a revolver, which do not spit out the empty shells as they are fired.
Leo Getz: They fuck you with cell phones. That's what it is. They're fuckin' you with the cell phone. They love it when you get cut off. Y'know why, huh? You know why? 'Cause when you call back, which they know you're gonna do, they charge you for that fuckin' first minute again at that high rate.
Question: In the beginning of the movie when the tanker truck gets blown up, why does the fully intact truck just get launched straight up with flames below it? The source of the explosion would be the truck itself, so when ignited, the truck should have simply been blown up into a million pieces, not launched straight up fully intact.
Question: Something I really don't understand about the ending. Riggs is looking over his former wife's grave when his beeper tells him that Lorna is expecting their baby. He races to the hospital and there she is about to give birth. So who drove Lorna to the hospital? Can't have been Riggs as he wouldn't have left at a time of need just to see his wife's grave. Doubtful that Lorna drove herself, and no relatives were there (as we see at the end). So what other explanation is there?Gavin Jackson