During the dance scene with the big mirror, we see Dracula spinning Mina around. The camera then pans slowly towards the mirror, and we see Mina spinning around midair. She spins at the same speed as in the part of the shot that includes Dracula. However, we can see in the background the white-gloved hands of the conductor, moving up and down at a very slow rate. This suggests that the midair-Mina was actually spinning a lot faster and the scene was slowed down.
Lucy's funeral procession, shown after she is pronounced dead by Dr. Seward, shows four pallbearers carrying her to her final resting place. The four men are carrying what looks to be a wooden casket, which is a rectangular four sided box. Yet when in the crypt, Lucy is in a stone coffin, which is six sided and shaped more like a body profile.
During the opening sequence with Renfield in the coach, we see a shot of the setting sun against a darkening sky, but when the camera cuts back to the coach, the sky is still bright blue and clearly daytime.
When Count Dracula is spinning Mina around in front of the mirror, he is holding her by one arm and one leg, both stretched out towards him. In the mirror, her legs are closer to each other than before.
When Renfield begins to sit down in the chair at Dracula's mansion, he is seen setting his briefcase down, however the briefcase is open and the papers are arranged on the desk in the next shot, without any time for Renfield to have taken them out.
In the funeral scene between Jonathan and Lucy, Lucy is putting her hands on Jonathans chest. In the next shot from the other side she has her hands on his shoulders and the next shot her hands are on his chest again.