Mortimer's hair when he is presented to Emily is of normal length at the beginning, but doubles in size at the end of the scene.
When Emily and Mortimer are sitting on a bench towards the end of the film, a few drops of rain or dew from a leaf land on the Mortimer's coat, resulting in a few spots of moisture which disappear and reappear in subsequent shots.
The film suggests that the Granville Electric was the first mechanical vibrator. While it pioneered the use of electricity in the vibrator, hand-cranked models existed before the Granville.
While in court, Charlotte states she was handing out suffragette leaflets in Leicester Square but the suffragette party of the WSPU did not form until 1903, and they were not nicknamed suffragettes until 1906.
When Emily is practicing phrenology on Dr. Granville, she is impressed with the "rigid thrombus" on his skull. A thrombus is a blot clot, found in a vessel, not a cranial feature.
The newspaper photograph of Doctor Granville is taken with flash powder in a flash pan. The story takes place in 1880 and flash powder was not invented until 1885.
The character Charlotte Dalrymple is shown riding a safety bicycle. The film is set in 1880, but safety bicycles weren't invented until 1885.