The Hard Way (1991)

Visible crew/equipment: When the cop car chasing the tow truck does a complete flip in the air, a roll bar is clearly seen where there was none before.

Other mistake: When Moss confronts the party crasher who has a gun to the arms dealer's head. The party crasher then pours gasoline all over the pumps and Moss shouts "Don't shoot, you'll blow this place up, I'm standing in the shit". As the scene eventually cuts back to Moss on a long shot, you can see that the floor is dry and he's not actually stood in the gasoline. (01:20:00 - 01:21:00)

Mr Manchester

Factual error: I drove a tow truck for almost 20 years, and there was never a lever under the dash that would permit the driver to drop the towed vehicle.

goofyfoot

John Moss: Don't eat like me, don't sit like me, and do not smoke like me! I'm trying to quit, anyway.
Nick Lang: Me too.
John Moss: And don't quit like me, either.

Captain Brix: You got two ways to deal with this: you got the easy way, you got.
John Moss: The hard way.
Captain Brix: Right. John, do us all a favor and make the right choice.
John Moss: I always do.

John Moss: Why don't you go tie your dick in a knot?