A character gets an ax embedded in his skull, then proceeds to fall down the castle's stairs. As the scene is repeated in slow motion five times, it is obvious that there is no wound in, and no blood on, the character's head. At the bottom of the stairs, a close-up of the face shows blood, but the wound does not match the place on the head where the character was struck.
When Dracula is explaining to Karen how she will enable his rebirth and that of his daughter, his mouth does not move through the whole scene.