When discussing the original photograph with Beatrice Templeton (Frances Barber), Charles Castle (Toby Stephens) says that the supposed fairy in the image could just be a 'glitch in the emulsion'. The use of the word 'glitch' is anachronistic. Glitch, meaning a small fault, didn't come in to common parlance till the 1960s some 40+ years after the setting of this film.