Continuity mistake: At the climax, the hero's large, short-haired dog dashes down to the village. It is obviously male. After alerting the villagers and foiling the villain, "he" runs back up to the castle, only "he" is obviously female on the trip back.
The Black Room (1935)
1 continuity mistake
Directed by: Roy William Neill
Starring: Boris Karloff, Thurston Hall, Marian Marsh, Robert Allen
Continuity mistake: At the climax, the hero's large, short-haired dog dashes down to the village. It is obviously male. After alerting the villagers and foiling the villain, "he" runs back up to the castle, only "he" is obviously female on the trip back.