Manhunter (1986)

Continuity: When William Petersen is talking to his kid in the supermarket, the cereal boxes behind him on the shelves change between two shots. The items behind Kevin also change during the scene.

Factual error: While using the phone in his cell, Dr. Lecktor asks an operator to dial a Maryland area code, but is then connected to the University of Chicago.

Continuity: When Dollarhyde is shot near the end of the film, he falls on the floor of the kitchen and a pool of blood spreads out from underneath him. In the next shot of his body on the floor, the pool of blood has disappeared.

In the final confrontation between Dollarhyde and Graham, Tom Noonan had to lie in a pool of stage blood for several hours as the crew worked on other shots. After all this time, the stage blood dried into a thick, cement-like adhesive that all but fused Noonan to the carpet.

Because his role was so emotionally exhausting, William Petersen did everything he could to rid himself of the Will Graham character after principal photography was completed. This included shaving off his beard, and cutting his hair and dyeing it blonde.

Michael Mann originally wanted Francis Dollarhyde to have William Blake's "The Great Red Dragon" tattooed on his back, but discarded the idea after deciding said tattoo trivialized Dollarhyde's personal struggles. When Ralph Fiennes played Dolarhyde in Red Dragon, director Brett Ratner decided to include the tattoo.