Continuity mistake: After the first murder in the nightclub when Durkin and the other policeman are on the boat, talking about Stone, their position on the river keeps changing. In some shots they have passed Parliament and Westminster bridge and in others they are still approaching them. (00:11:00)
Continuity mistake: After Stone falls asleep, the position of his hand alternates from shot to shot. (00:13:15)
Continuity mistake: When Stone, Durkin and the chief policeman are discussing the killer and Stone's arsenal, the cigar box on the desk closes and moves between shots. (00:14:00 - 00:16:20)
Continuity mistake: When Stone leaves the building he lives in, there is writing on the wall saying which way to go for each floor. When the killer enters the building, the wall is blank. (00:37:00 - 00:41:40)
Continuity mistake: When Michelle takes one of the chocolates that are in the shape of a heart, she takes one from near the top. When the killer enters the flat, it is a chocolate from near the bottom that is missing. (00:40:15 - 00:42:50)
Continuity mistake: When Stone sees the little girl outside his flat, after the murder there, his face is very wet from the rain. He turns around and it is now totally dry. (00:49:10)
