Corrected entry: When Ness and Malone are at the police academy Stone shoots targets with a blue 4" revolver. When Malone insults Stone's heritage just moments later Stone pulls a snub nose chrome revolver on him. (01:01:27)
Corrected entry: When Ness shoots the white-suited gangster in the shack at the border shoot-out, he shoots him with a shotgun in the chest so therefore there should be exit wounds visible on his back, but when Malone picks him up and pushes him against the window there is not a tear or a blood stain on the back of his white coat.
Corrected entry: When Ness chases Nitti onto the roof of the courthouse, Nitti turns to fire back at him. He fires his .45 empty - we can see that the slide is back and the barrel is protruding - then runs a bit more, then turns to fire again. Anyone who knows anything about guns - like, say, a professional killer - would know when an automatic is empty.
Corrected entry: In the shootout on the bridge between the U.S. and Canada, there are barrels of booze loaded on all the trucks. Bullets start flying and the barrels get shot full of holes with booze spraying out. There is a point where Agent Wallace runs at a man who has shot Agent Stone and hits him with the butt of his gun. Somebody forgot to turn the "booze pumps" on until midway through this shot. No leaky barrels, then suddenly booze everywhere. It oddly gives the look that all the barrels have spontaneously burst full of holes.
Corrected entry: When Jim Malone is handing out pump action shotguns for the first raid (just before the carry a badge, carry a gun line) He hand one to George Stone who loads a shell. When the gang get to their target they crowd round a door (which Malone smashes with an axe) Stone does the loading motion again, a pointless exercise.
Corrected entry: When Elliot Ness arrives at Malone's house, when Malone answers the door it appears that Ness has a black eye on his right eye. Yet, when he is inside the black eye seems to have disappeared.
Corrected entry: During the scene where a public official visits Elliot Ness in hopes of bribing him, the office is empty. When they enter it is only Elliot Ness, the official and the young cop they recruited. As Elliot kicks out the official, we see Sean Connery sitting within the office on a chair next to the door.
Corrected entry: In the famous scene on the train station stairs, you can clearly hear two babies crying, in spite of the fact that there is only one baby being carried by the mother.
Corrected entry: The RCMP officer at the rendezvous is a captain. But the Mounties (in common with other Canadian police forces) have always used British-style police ranks. He would actually be an inspector.
Corrected entry: Ness watches his buddy get on the elevator with the hit man, on the upper floor. The door closes and in the next shot (same hall) he looks out the window and sees the elevator open to the alley/loading dock with his buddy dead inside and the hit man escapes. The top of the elevator and the bottom are in a different vertical space (the elevator went down and then made two 90 degree turns to a different wing of the building).
Corrected entry: After the Untouchables charge the bridge at the USA/Canada border, Ness chases one of Capone's cronies to the shack. Ness kills him with a shotgun blast through the doorway, making the body land on the porch with his feet at the door jam. Later, when Malone steps out to 'interrogate' the body, it is laying across the porch in an entirely different position.
Corrected entry: When the untouchables bust all alcohol from Canada, the boxes all have the Canadian maple leaf on the side. However this only became the Canadian national symbol in 1965, making the film about 40 years ahead of its time.
Corrected entry: The film was set in 1930, and Eliot Ness is shown as having a wife and children. Eliot Ness didn't marry until the 1940s - by which time, Ness had moved to Cleveland.
Corrected entry: When the four Untouchables are in Canada working with the Mounties, the smugglers are charged by a pack of Mounties on horseback. Despite the use of many tommy-guns, not one horse or rider is injured, even though they are riding wall to wall, with no spaces between them.