Character mistake: When the hijackers separate the lead car and back the rest of the train away, the conductor says in amazement, "I didn't know these things went backwards." Any subway conductor would know that trains run in either direction. Most trains relay (reverse direction) at their terminus, and any subway train can be operated from either end.
The Taking of Pelham One Two Three (1974)
1 character mistake - chronological order
Directed by: Joseph Sargent
Starring: Walter Matthau, Martin Balsam, Robert Shaw, Hector Elizondo
Continuity mistake: Right after the train is hijacked by Robert Shaw at 28th Street station, there are 2 additional hostages in the front car (for a total of 19) that disappear after the train is hijacked between 23rd Street and 28th Street.
Lt. Rico Patrone: What's up, Z?
Lt. Garber: You won't believe it.
Lt. Rico Patrone: You know me, I'll believe anything.
Lt. Garber: A train has been hijacked.
Lt. Rico Patrone: I don't believe it.
Trivia: New York Transit Authority has code words for trains going through subways, based on the departure station and time of departure. Pelham One Two Three means the train left Pelham Bay Park Station at 1:23 pm. Ever since the 1974 film was released, New York Transit authority has made a conscious decision to try very hard not to let subway trains leave Pelham Bay Park Station at 1:23 in the morning or afternoon.