Continuity: The first time William Holden and Faye Dunaway have dinner together, Holden's lit cigarette changes length several times in both directions.
Continuity: Halfway through the first scene in Diana Christianson's office, the door, which had previously been open, is closed. Later, she walks over to the door and closes it again.
Factual error: In the story that Schumacher tells Howard Beale in the beginning of the film, he says that in 1951 he was sent on a remote to cover the opening of the lower level of the George Washington Bridge. The lower level, in fact, did not open until 1962.