Corrected entry: At the end of the movie at the Canadian border, is revealed the sign of the location of the terrorists: "Nord des lignes" "la grande stop du Québec". The translated sign reads: "North of the Border" "Quebec's largest truckstop". "Nord des lignes" does not mean "North of the Border" in French. It means almost nothing but can be translated as "North of the lines". The grammar in "la grande stop du Québec" is also wrong. It should be "Le grand stop du Québec". This is also not a correct translation for the English equivalent.
Corrected entry: In the North of the Border scene when McClane shoots at the wires to the North of the Border neon sign, one of the two wires falls and takes out the chopper. McClane then walks back to his downed chopper, looks back at the North of the Border sign, and you see two wires going to the sign.
Corrected entry: When dump trucks show up outside train station where Charlie is and Simon introduces himself as detective Bob Thompson of the city engineers office, Charlie doesn't recognise him or the guy on the side of the dump truck, even though in a previous scene Charlie was in the van when the FBI was showing the pictures and explaining to McClane and Zeus about Simon being Peter Gruber and the other two.
Corrected entry: The gold storage in the Federal Reserve Bank is actually below the subway tunnels. So the bad guys wouldn't be able to steal the gold the way they do in the movie.
Corrected entry: As John and Zeus are running to the park for the second bomb they are talking about the incident from the first film, John says that he threw Simon's "little" brother out of a window, yet when John was talking to the FBI agents they did not mention whether Simon was older or younger then Hans.
Corrected entry: In the scene where everyone is talking to Simon for the first time in the police station, the psychiatrist says that Simon was giving clues to his identity, and that one of those clues was his speaking in German. Simon never spoke in German during that conversation.
Corrected entry: When Zeus goes to Yankee Stadium, the terrorists tell him to report to the home-team dugout. Yet when Zeus goes to Yankee Stadium, he is shown at the dugout along the third-base line, which any Yankee fan knows is the visitor's dugout. Given he knew which dugout he was meant to go to, and the importance of the situation, this can't just be a character mistake.
Corrected entry: During the Federal Reserve scenes, the driller machine cuts a hole in the wall into one of the gold deposits. In one scene, the gold is stacked at the same level. When we see the room on the television screen, there are 2 different height levels of gold in the room.
Corrected entry: In the scene when Simon asks Inspector Cobb to have McClane come to Harlem on the phone, he just mentions the address/location and the Inspector hangs up the phone. There are no further instructions given, as to what McClane has to "do" at Harlem (which McClane does in the subsequent scenes).