Factual errors: William Gull says that he is the Royal Family's physician-in-ordinary. In fact, Gull was the Royal Family's physician-in-extraordinary (the original comic book got this right).
Continuity: When Abberline first meets, and discusses the Ripper killings with Sir William Gull, Abberline's drawing of a Liston knife keeps changing shape and position on the blackboard between shots.
Anachronisms: Electric lighting was rare, but not unheard of, in 1888. Even so, the electric light in the library is of a modern design.
Factual errors: The surgeon Ferral is called "Doctor". In England, surgeons are not (and were not) called "doctor", but "mister".
Miscellaneous: The coachmen's ear is whole in some scenes and it is cut in other scenes
Continuity: Upon arriving at the murder scene (in the back yard of a house), Inspector Abberline's coat and hat are clearly hung upon the fence a moment before we see him actually hang them there.
Revealing mistakes: During the cemetery scene, the head stone from which the crow flies moves visibly as the bird pushes off.
Anachronisms: Some of the constables and law enforcement officers shown in nighttime scenes are carrying flashlights, which were not patented until ten years after the film's date of 1888.
Anachronisms: Prince Albert Victor's painting in the gallery declares him to be the Duke of Clarence, a title he would not receive until three years later, in 1891.
Factual errors: In 1888, a bottle of laudanum would not have been labeled as poison, as it was a popular, socially acceptable, and inexpensive painkiller and sedative at the time.
Continuity: When men broke into the room where the couple was having sex at the beginning of the film, the woman quickly covers up her bare breasts with her sheets, then during the close up of the man, she is again trying to cover her breasts.
Factual errors: Liston knives were not serrated as they were used for the cutting of muscle. Only bone saws and the like had serrated edges.
Continuity: When Abberline is taking Mary into the gallery to view the picture of Prince Albert Victor, they pass the same lady in the white dress twice in different shots.
Continuity: When Ferrall is performing the lobotomy on Anne, on the last tap we cut to Gull talking. In the glass we see the reflection of Ferall performing the tap, but there's no sound. In the following shot of Ferrall he repeats the tap this time with sound.
Anachronisms: We see a shot of the Royal London Hospital in Whitechapel. However, it only gained its "Royal" status in 1990 - for the duration of its previous 250 years history, it was called just The London Hospital.
Miscellaneous: During the scenes where McQueen comes after the various different women, his left ear is clearly pierced. He isn't wearing an earring, but the hole is clearly visible.
Audio/visual unsynchronized: When Gull and Abberline are first discussing the murders, there is a shot from behind Gull when he is talking. His mouth does not match up with what he says.
Revealing mistakes: When Abberline gets smacked at the beginning of the movie to try to get him somewhat conscious, seconds before you can see the 'blood' on his lip where he is supposed to be hit.
Continuity: The size of the chalk letters with the word Jewes written on it changes shape from when Abberline points it out to the time the constables wipe the chalk board clean.