Miscellaneous: When Hutter sits down on the bed at the inn to read the book about Nosferatu the Vampire, a piece of paper can be seen appearing and then disappearing in the lower left corner of the screen.
Crew or equipment visible: When Hutter is going to bed in his room at the inn, a waving arm of a crew member (holding some piece of cloth) can be seen at the far right corner.
Errors made by characters (possibly deliberate errors by the filmmakers): The captain of the ship carrying Nosferatu ties himself to the wheel with a 'granny knot' (which may slip loose), rather than the correct sailors 'reef knot'. Knot is clearly visible at 52:00 min on the DVD.
Revealing mistakes: In the English language version, modern watermarks show through the pages of the supposedly ancient "Book of the Vampires".
Revealing mistakes: When Hutter is writing his letter to Ellen in Count Orlok's castle, the paper that he is meant to be writing on is clearly blank throughout the scene.
Revealing mistakes: When Orlok has loaded the crates onto the cart, he climbs into the last one and the lid "levitates" into place. This magic trick is achieved by stop-motion animation, but the cart horses do not hold their position and shatter the illusion (their heads jerk about completely unnaturally while the lid is in motion).