My mom and I are obsessed with scary movies and we usually watch them every weekend. I prefer ghost movies, but if your answer isn't a ghost movie, it's fine, we'll take anything we can get. Also, please include what the movie was about, what it's rated, and why you thought it was so scary.

The Thing
It's the goriest movie ever, it has a lot of jump scenes.
http://www.imdb.com/title/tt0084787/

I really recommend this movie if your a fan of horror.
It's R, just for some strong language there's no sex or anything.