Factual error: Near the beginning of the movie the main character's father shoots a man during a card game. He fires 8 shots from a six shot revolver without reloading.
Factual error: When Nina was given the assignment in the restaurant in the guise of a dinner outing,she was handed a a box with a pistol in it. That pistol was an Olympic-grade target pistol used in international competition. That type of firearms does NOT hold 8 rounds,and she fired 8 rounds before re-loading.
Factual error: When Robocop first flies into the the battle at the end of the movie, the whine from his jetpack causes the glass in some windows to blow outwards. Considering the sound waves are hitting the glass from the outside of the windows, they should be blown inwards not outwards.
Factual error: At the end of the film, Amos is shown turning onto I-95 south. However, he does so from an intersection, not an on-ramp. Since interstates are limited-access highways, in reality he would have needed to use an on-ramp to enter I-95.
Factual error: When the robbers are breaking through the vault door, they look to be using an oxygen lance which in reality would cause that entire room to be filled with smoke and fumes in seconds.
Factual error: One character refers to the mobile command post in the Airstream trailer as "high-tech", a phrase that wasn't around in 1963; "space-age" would have been more correct for the period.
Factual error: Phil departs from the office right after the 5pm news. Punxsutawney is over 90 minutes' drive from Pittsburgh. The sunset in Punxsutawney in early February is about 5.30pm, so by the time they get there it should be completely dark. But it's bright daylight, without even a hint of twilight. (00:05:45)
Factual error: Detective Beck is at the morgue. A man comes by and make an incision in the detective's arm. Blood flows freely from the cut. That is not possible. Livor mortis would pool the blood in the lowest parts of the body after around six hours of being dead. And this cadaver has been dead much longer than that.
Factual error: Dr Hill says he's a cardiothoracic surgeon, so what's he doing operating on a woman that needs a gynaecologist surgeon? When doctors specialise, that's it, they do not swap and move in other fields, the only time this would happen is in an absolute emergency, as in if there was only one doctor on duty. But that wasn't the case here.