Most horror movies are in fact horrible movies. They get to be same ol'-same ol'. Same ol' pack every minute with some cheap thrill (usually 'splatter') and nowadays they can pack every second with gaudy special effects. One of the goals of a really good horror flick is to suspend the sense of disbelief of the audience. For instance, I saw both of the recent Mummy movies and nearly got dizzy viewing ridiculous special effects every second. It probably costs a million dollars per second to make those movies and my sense of disbelief was never suspended, it grew roots.
Subtlety can be more terrifying. Less is more.
I first saw 'The Woman in Black' on the A&E channel. After flipping through the usual 987 channels of very bad television I stopped to watch it. This movie almost has the feel of a 'Masterpiece Theater' production. That was fine with me, I've always preferred British TV & movies anyway.
Most viewers would find this to be too slowly paced. But the slow pacing helps give the story credibility. The special effects are few which lulls the viewer into thinking that this film is set in the real world thus making us a bit more uneasy. The makeup and costume for the ghost are kept simple and believable. Hollywood would have made her look like a she demon from hell with glowing eyes-fangs-claws etc. Hollywood would have done an overkill and turned this idea into a mediocrity.
The woman only makes about five appearances in the film. Most of them are where she appears in the distance and even that creates a good fright. If she appeared too often, it could've cheapened the mood that gets set. However this movie is so well made that through much of the film we're led into sensing that she is there the whole time but not visible. The scene where she 'visits' Arthur Kidd late at night and we see her just a little too close is a masterpiece in horror.
This is just an extraordinary film that I think should rate as one the finest horror films ever made. I have a copy of 'The Haunting', 'The Changling' and a zillion more. I haven't seen anything that tops 'The Woman in Black' yet although I'm still looking. This movie is so well made that it gives even the most hardened skeptic (like me) a moment where I almost had second thoughts about the non-existence of ghosts. I joke to people that I occasionally get brief fears that she could appear standing in the middle of the road or that I'd see her staring through my window, etc. Maybe she could be in a crowd at the mall glaring at me with her look of hate. This is how a really great horror film should be. Like a LaFanu novel, The Woman in Black very slowly pulls you in and wraps herself around your neck and before you realize it, she's squeezing the life out of you and then it's too late.
Closest thing I have to a criticism is that this was made for the small screen... and it's a terrible shame that this is out of print. I just paid over $40 for my second copy of this movie. It's a major prize in my collection. Now I'm on a quest to find an even better horror movie that not only gives the chills but also qualifies a sound drama.

Despite the lavish production numbers and wonderful costumes this film is a chore to watch. The murder-mystery plot is just a vehicle to mount the musical numbers on but it often brings the proceedings to a staggering halt besides not being very involving. Although there has obviously been a lot of money spent on them the numbers are badly staged and poorly photographed. It's obviously a pre-code film because the girls often wear very little clothing and there's even a song singing the praises of marijuana! The performances are all one-note although it's nice to see Carl Brisson in a musical but when Victor McLaglen, as the police Lieutenent, lurches into view for the umpteenth time on the hunt for clues, you may want to throw in the towel or at least fast-forward to the next number. Pity the patrons who were trapped in the cinema on its release though!