Haven't been into horror movies for many years, but I would like to watch them again.

What you are: a casual horror film fan. What you want to be: a connoisseur who knows the difference between slasher films, giallo and torture “porn”; someone who knows who “Captain Howdy” is and where “Night of the Living Dead” was filmed. Horror 101 is for you! The first installment lists out ten films you should Netflix right away and get a crash course on quality horror. If you’ve seen six or more of these, then you’re probably more than a casual fan. Bravo to you!

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http://screencrave.com/2008-11-06/horror-101-ten-movies-you-must-see/

Do not watch Eraserhead.

Overrated as shit.

I promise.

The Thing, on the otherhand, is a masterpiece of sci-fi horror.

Yeah The Thing is classic.

The movie that has freaked me out the most is Rosemary's Baby...the again that was over 10 years ago.

its always the ones without special effects that resonate with the most creepiness...they can't just lean on them to create the fear....

Eraserhead is pretty bad, although it does have a couple of extremely effed up scenes that stick with you for weeks... 

never seen any of the others on that list tho

Yeah that's how Rosemary's Baby was for me...so natural and real. It kicked my ass. 

 Anyone remember Cloke and Dagger??  When I was a kid, that nice but twisted grandma with three fingers scarred the hell out of me. 

The TV version of IT tore me up...until the end when it turns into *spoiler*. 

I dare anyone to watch Nosferatu (the original silent version not the Werner Herzvog/Klaus Kinski remake.) in COMPLETE darkness.  Best horror film. Ever.

Evil Dead, Alien and Pet Cemetary get honorable mentions.