In the opening scene, when Amanda jumps off the balcony, you can see one movie magic shot if you play it at slow motion. It's an overhead shot showing a stunt person falling directly towards the car. If you look closely you can tell it's an airbag with the outline of the car and street painted onto it. The airbag just begins to break her fall and they cut away.
Contributed by: Vince Morales
In the scene where Amanda Hunsucker lands on the car, you can clearly see that her body centers on the windshield and hood. In the next scene, her body is centered directly over the top of the car.
Contributed by: Simon Lennox
In the scene where Riggs handcuffs himself to the suicidal office worker on top of the building. As they jump, you can clearly see the handcuffs break and in turn, the actors grabbing each others hands to create the illusion that the cuffs are still bound.
When Riggs tells Murtaugh about the special round he has to commit suicide, he says it's a hollow point designed to blow the back of his head off. When he hands the bullet to Rianne, you can see it's a full metal jacket, not a hollow point.
Contributed by: C.T. Warren
In the (in)famous firing range scene, Riggs & Murtaugh pretty much put all the pieces of their investigation (so far) together, despite that they shouldn't have been able to hear one another. Both were wearing ear protectors the whole time!
When they question the kid outside of what was left of Dixi's place, the kid says the guy from the gas company has a tattoo like Mel Gibson.
Only problem is, he can't see Mel's tatooo cause he's t-shirt sleeve is covering it, which Mel than pulls all the way up to show the tattoo.
Also the kid must have been pretty close to the person to see that tattoo while hiding under the porch.
Contributed by: ddaarroonn
The car Mr. Joshua used during the attempted hit on Riggs was the same car that he carjacked for his getaway later in the movie.