Continuity mistake: Steve Austin uses his foot to stop the speeding, out-of-control taxi. The scene shows his foot in soft sand and gravel trying to stop it, but when he stops the taxi, it is on a paved, asphalt road.
Continuity mistake: As Doctor Abbott sits in a chair before Steve breaks through the window, Abbott's hand is by his head. The scene cuts; now he has an open book in his lap. Another scene cut, and the book is gone.
Continuity mistake: After Steve rescues Susan from the quicksand, her white pants are wet and covered with dark mud, except a few consecutive scenes later when her pants are spotlessly clean.
Continuity mistake: Steve props himself against the back of the armored car with his arms folded and legs together stretched outwards to wait for the bad guys to drive up. When they do, Steve is now sitting on the rear bumper of the armored car with his legs spread and his hands on his knees.