Goofs

When the count's servant is shot in the chest, his blood is red, but when he slashes his wrist a few minutes later, he bleeds green blood.

When the Iron Maiden mask is applied to Regula's face and he is seen being led through the hallways there is no blood visible on him. There are about 15 or 16 spikes visible in the mask. Facial wounds bleed very much.

Early in the film, as a coach approaches the village, visible modern tire tracks can be seen in the terrain.

Karin Dor's teased "Flip" wig is totally out of period.