When the newlyweds arrive at the hotel, they get caught in a sudden downpour. Water can be seen on their shoulders and on their hats, as well as on the wooden porch as they ring the doorbell. They are however bone dry when they step into the reception, despite the innkeeper remarking that they are soaked through.
When Marianne is summoned to see her husband by Ravna, no bite marks are seen on the side of her neck. Later, when she is taken back to the hotel and placed in bed, the bite marks have returned.
When Professor Zimmer says he is going to draw a Salomon Pentagram, which is a five-pointed star, he draws an eight-pointed star.
When the professor tells Gerald that as long as the sun is up that his wife Marianne will be safe, this is incorrect. Daylight is when vampires sleep and are at their most vulnerable. He gives Gerald a sedative in his drink which puts him out until nighttime. He should have gone in daylight to seek his wife.
When Zimmer begins the ceremony with Harcourt holding the ancient book, the pages are seen to be blank.
When Gerald stumbles down the stairs, he collides with the statue (a lion) on the banister, which moves, revealing its fake and flimsy nature.
Toward the end of the film when a close up of Marianne's neck is shown the bite marks are clearly glued on adhesive tapes.
When Marianne falls at the door shutting behind her, the red dress rises enough to see that she's wearing modern, sheer black hosiery.
Marianne is seen wearing modern high-heeled shoes.
In this story set in preWWI Europe, Marianne, Sabena and practically all the other women wear hairdos similar to that of Jacqueline Kennedy, the First Lady of the USA in 1963.
The car used in the film was built in 1903. Dialogue during the movie clearly implies that the car is new, suggesting that the events take place in the first half of the first decade of the 20th century. However, the car clearly has a AA (British Automobile Association) badge mounted on the front, of a type first used in 1911 and phased out by 1924.
A crew member can be partially seen standing to the far left when the hotel owner removes the dust-cloth from the shelves in reception.
The location of the action is never specified, and no character mentions any place names. However, the setting and dialogue frequently mixes mix both German and French styles and languages. For example, the owner of the Grand Hotel is called Bruno (a name derived from the German for brown) and wears lederhosen, but calls the nearby castle a "Chateau", and refers to a "Herr Doctor" while speaking to a woman he calls "Madame".