Continuity mistake: With 2:30 left in the movie, Louise shoots the werewolf 3 times. After her first and second shots, we see the werewolf and there is no blood. When she shoots him the third time, three bloody bullet holes appear at the same time.
Revealing mistake: Louise kills the werewolf by firing three "blessed" bullets at him. But the third time she fires, the revolver doesn't revolve: the chamber remains stationary.
Revealing mistake: Just before Louise shoots him, Andrew turns to face the camera, and the blood packs under his shirt are very visibly outlined.
Continuity mistake: When Louise is in the study, sunlight is coming through the manor house windows, even though it's supposed to be nighttime.
