Corrected entry: In the US (and most other places) ex-police officers and prison guards who are sentenced to a term of imprisonment are never, ever put into the general prison population - they are always put into protective segregation. There are no exceptions and the prisoner cannot request that they be not segregated - it just does not happen.
Corrected entry: When Cash and Tango fight everyone in the prison, all of a sudden Cash is only fighting one person, and there is nobody around, except for a few arms visible from the other side of some bars. Cash takes a bat from that guy and uses it on two guys, but 5 seconds later he doesn't have the bat anymore and is surrounded by bad guys and "gives up." (00:42:00)
Corrected entry: The bad Asian guy breaks through the mirror door exactly when Cash stops in front of it. Is it a two-way mirror? Maybe, because the mirror has no backing of any kind and is only one thin sheet of glass. Kind of dangerous to have a door in your house like that if you ever close the door too hard. Then the bad guy jumps blindly through a window - and, how fortunate - there is a car two stories below to break his fall. But when Cash jumps out the window he travels about 10 feet shorter in distance and doesn't reach the car. (00:07:00)
Corrected entry: When Tango and his sister are arguing in his back yard, Cash is naked from the waist up. In the next shot Cash is sitting down with his dress pulled up over his shoulders, and then he pulls an audiotape out of the dress, from the level of half-way up his chest. (01:13:40)
Corrected entry: In the scene where Tango first goes into his cell with Slinky, Slinky is trying to play crazy while playing with a slinky. Tango is reading the stock quotes from the paper. In the fold between the news pages there is light at the top showing it is torn. The slinky is then thrown at the center of the page and the paper separates where the tear already was.
Corrected entry: When Catherine exits the bar, she is wearing a motorcycle helmet (covering her face), and the cop makes her take it off. A second later, she is smoking a cigarette (and blowing smoke in the cop's face). Not impossible, but somewhat impractical.
Corrected entry: In the beginning Stallone puts a few bullets through the front window of a semi. When the semi stops the bad guys fly out the window breaking the whole glass. Then other cops arrive and the chief is clearly not happy about Stallone firing gunshots at the semi's window. If the chief just arrived and the window on the semi is completely broken, how can he then know that Stallone fired gunshots at the semi?
Corrected entry: When Cash dresses up as a woman to escape the police, it is just amazing that there happens to be a pair of women's high heeled shoes that fit him, and a black plastic dress in his size, and lucky for him somebody has a wig lying around. How long did it take for him to create this disguise? He had to shave his legs, arms, back and chest. You don't do that in 5 minutes. (01:09:00)