Haunted house flicks were certainly different 68 years ago. Much politer and far greater amounts of hat wearing. And the ghosts weren't up to much either, they went 'Woooooo' occasionally, floated up and down the stairs a few times and looked a bit like a curtain. Not to worry, you could pretty much get rid of them by speaking firmly and throwing a candle at them. That'll teach 'em.
Most of the cast and crew were born in the 1800s. Obvious, given when it was made, but still kinda cool.
Brilliant final line.