Revealing mistake: The crocodile that Steve wrestles with is obviously fake.
Continuity mistake: While being chased, Steve leaps forward on all fours with his legs spread open, but in the next shot he’s suddenly jumping upward with his legs close together.
Continuity mistake: When the crocodile approaches Susan, the scene is set at dusk. However, when she falls into the water, it suddenly shifts to broad daylight. Then the light keeps switching randomly throughout the rest of the scene.
Continuity mistake: When Steve plays the guitar, his forearm stays still in the close-ups of his upper body, but in the hand close-ups, it's moving wildly.
Continuity mistake: When Steve finishes playing the guitar, the position of his hand shifts between cuts. Also, his shirt cuff is hidden at first but suddenly becomes visible.
Continuity mistake: Susan grabs the guitar neck with both hands, but in the next shot, she's holding it with her left.
Factual error: The establishing shot of a Spanish town shows a street sign in Italian.
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.
Factual error: When Steve plays the guitar, his bionic right hand is strumming very fast, and the sound of the guitar goes from a low-pitch sound to a higher-pitch sound. Going up in pitch relies on the chording hand (Steve's left) and can only happen when the guitarist moves his chording hand up the guitar neck to the guitar's body.
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.
Other mistake: When Steve's bionic arm is being bitten by the crocodile, his jacket sleeve does not have any teeth holes, isn't ripped, but is intact with no damage.
Continuity mistake: Steve's photo changes between shots. (00:13:30)
Continuity mistake: After the henchmen blow out the tire, it appears reinflated in the next shot when the car starts skidding. It is better noticed when Steve overturns the car.
Revealing mistake: Before Sloan jumps to his death, he is replaced by a stunt double with a different hairstyle and darker colour.
Revealing mistake: The girder Steve uses to kill Sloan bends, wobbles, and bounces, revealing that it is made of rubber.
Continuity mistake: When Sloan's robotic mask falls off, his hairstyle looks completely different from how it appeared before.
Continuity mistake: Before Sloan and Steve's final fight, when Sloan runs towards the helicopter, the sky keeps switching between grey and cloudy to bright blue.
Continuity mistake: When the helicopter chases Steve, there's a hole in the window where a gun protrudes in the close-ups - yet in the wide shots, the gun is gone and the hole is sealed. This alternates back and forth throughout the scene.
Continuity mistake: When Steve's car skids, its side is spotless - but when it overturns, it's covered in scratches, revealing that a different car was used.
Revealing mistake: When Steve overturns the car, the shadow of the chain used to flip it is visible.
