Some of my favorite spooky movies of all time:
The Wicker Man (strange and wonderful)
Don't Be Afraid of the Dark (a made for TV film from the 1970s starring Kim Darby--so creepy!)
Carnival of SoulsThe Exorcist (I love how it builds slowly to terrific horror from a calm, grey beginning)
Rosemary's Baby (A masterpiece, pure and simple)
Stranger in Our House (made for TV in the 1970s, with Linda Blair)
The Blair Witch Project (A brilliant work of contemporary cinema, yes I said cinema, and very scary)
Masque of the Red Death (One of the only works by Roger Corman that is genuinely atmospheric and frightening)
Theatre of Blood (made for TV, I think, starring Vincent Price and Diana Rigg, which is reason enough to see it)
Mad Monster Party (maybe it looks like kid stuff now but it sure inspired Tim Burton with its brilliant animation)
Lost Highway (David Lynch crafts some of the most terrifying moments in film)
Night of the Living Dead (I still find this scary)
Children Shouldn't Play with Dead Things (A parody (or is it rip-off?) of the above, campy, hilarious and spooky)