Anachronisms: The story is set in the 19th Century. However, modern sidewalk painting can be clearly seen in some scenes.
Crew or equipment visible: The shadows of various crew members can be seen in several scenes throughout the movie, most noticeably in the first scene set in Renfield's cell.
Continuity: When Dracula burns up at the end, the skeleton which remains has no fangs.
Factual errors: The opening text (at least in the Spanish version) states that Bram Stoker first published "Dracula" "50 years ago". According to the filming time of this movie, that would be 1920. However, "Dracula" was first published in 1897.