Evelyn Stewart's character shows a quite elaborated make up during key moments. Close ups are perfect but when in wide angle are used make up is clearly not well applied and appears "fake".
When Martha comes into Elsa's room to inquire if she is all right, they are looking at each other. There is a shot where Elsa is shown asleep with her face away from Martha. Then immediately it goes back to where they are both looking at each other.
"All the bullets were blanks except the last one." Which is weird because earlier in the film when Porter (actually dead) was shooting at the couple in the cemetery, there were ricochet sounds.
During the fire in the underground passage, it is obviously a dummy of the hanged woman.