Corrected entry: The serum is supposed to "quantum shift" the body of the subject out of range for visible light. However, Bacon is seen working in front of his computer modelling molecules. Clearly, a "quantum shift" would have nothing to do with molecular bio-chemistry, but rather, say, high energy physics. (Something closer to old films in which scientist would try to "beam" someone into invisibility).
Corrected entry: Throughout the film, Kevin Bacon's character is seen with sticky sensor wires stuck to the top of his head and around his face. But we never see him get his hair cut off, even though we even see he has no hair when they first attempt to make him visible. Also, just a short time later, we see Kevin swimming in a pool, with a full head of hair, and later it is gone again.
Corrected entry: There is a scene where the invisible Sebastian rolls over on his 'bed' and pulls the sheet over. The next shot is from the opposite direction where you can see the monitor showing the thermo image of Sebastian - in the monitor we see Sebastian rolling over and pulling the sheet again. Real time would not afford enough time to be doing this twice.
Corrected entry: The way Sue is wrapping the wires around the door handle in order to make a magnet, would cause the current to go from left to right and return from right to left. This would create two equally powerful magnetic fields in opposite directions so the final sum would be zero magnetic field. The door handle shouldn't get magnetized.
Corrected entry: The pressurized tanks of flammable liquid that Linda uses to make a flamethrower are sitting unsecured in the lab. OSHA regulations require pressurized cylinders to be secured to prevent them from tipping over. The danger is that the top will get knocked off, and the tank will shoot around like a rocket. Any lab would have their tanks secured for this reason.
Corrected entry: When Sebastian comes in at the beginning there is a guard outside who waves at him. When he tells the guy watching him from heaven he is leaving there is a guard out there again. Yet when Sebastian cuts the lines and changes the elevator codes and is killing everyone and all the explosions, screams, shouting, and noise going on he didn't hear anything or call anyone. He should have at least heard a faint explosion or shout.
Corrected entry: When the guy is lying in the corridor bleeding and Sarah (the veterinarian) says he needs blood, she goes back to the lab and starts pulling out bags and bags of whole blood. Problem: They're not authorized to work on humans, so the blood she's planning on pumping into this poor soul (without checking his blood type), is from either a gorilla or a dog.
Corrected entry: In spite of having all kinds of sophisticated scientific and video equipment in the lab, Sebastian shows the Generals the gorilla experiment using an old fashioned movie projector...
Corrected entry: Kevin Bacon is supposed to be completely invisible, however we see him eating food while he is invisible. The food he is eating is something that can be seen. So once the food went down into his stomach wouldn't the other characters of the movie see digested food floating in mid air every time he walked by?
Corrected entry: In the beginning of the film, when the invisible gorilla has escaped, as Dr. Caine is getting the tranquilliser guns from the cabinet, he bets Matt that he can get the gorilla first. He does shoot the gorilla first, with the aid of infrared goggles. The problem is, we blatantly see him close the goggle/tranquilliser gun cabinet before he ever gets a pair of goggles... In fact, as he runs down the hall we see both of his hands and all he is carrying is a tranquilliser gun.
Corrected entry: They don't even need to inject anything to return Kevin Bacon to normal, all they need is to shock the hell out of him. If you notice the gorilla when they use the paddles on her she becomes visible. Also at the end of the movie Kevin Bacon is made partially visible after he was electrocuted. A few more shocks and he would have been fine.