Continuity: At the end of the movie, when Riggs is in the cargo area, a gunman shoots at him, he rolls and starts emptying the clip into him - you see the bullet holes in the gunman. But as Riggs is face to face with the gunman, the holes disappear.
Great sites
Mistakes
Towards the end of the movie, Gibson shoots padlocks with his pistol to break them to get into a truck. Mythbusters has proven this cannot be done with ordinary weapons, or even much more powerful weapons. See more...
Trivia
The first time we see Riggs in his trailer, there's an advert for some new aftershave called "Hero" on the TV. During the attack on his trailer later, there's a close-up shot of a bottle of aftershave being destroyed - freeze-frame it and you'll see the brand: "Hero" again. See more...
Lethal Weapon 2 (1989)
Directed by Richard Donner, starring Danny Glover, Joe Pesci, Mel Gibson (add more)
Lethal Weapon 2 mistakes
Continuity: While he's on the toilet, Murtaugh is wearing a flak jacket that disappears for one shot while he is getting instructions from the bomb squad leader.
Factual error: All vehicles sold in the U.S. since the 1950s have federally-mandated laminated windshields. When the surfboard crashes through the windshield of the truck, the windshield shatters like ordinary unlaminated glass.
Lethal Weapon 2 trivia
The first time we see Riggs in his trailer, there's an advert for some new aftershave called "Hero" on the TV. During the attack on his trailer later, there's a close-up shot of a bottle of aftershave being destroyed - freeze-frame it and you'll see the brand: "Hero" again.