Continuity mistake: When the doctor on the right walks in the operating room he puts a glove on. A shot later it's off and he's putting it again.
Continuity mistake: In the scene when Cho & Dave Hatcher confront the thugs in the park, one thug is on the right, at the back, holding a radio. He says, "Oh look, here come the policemen. I wonder what they want with us this time?" In the next shot, the radio is on the park bench, in front of his knees. (00:51:25)
Revealing mistake: There's a short ramp by a truck's cargo bed, but when the bikers ride over it, it's become a longer ramp that goes up to the cabin to allow for the stunt. (00:06:14)