IMDb doesn't recognise 'The Haunting Of Bly Manor' as a movie, per se, at all. It only lists it as a TV mini-series. It's a follow-up to 'The Haunting of Hill House', with the plot based upon the Henry James' novel 'The Turn of the Screw'.
I started watching the series that is on Netflix but I vaguely remember seeing a trailer on youtube with a black girl playing the nanny which looked better