Very few people are going to complain about a horror movie being scary since, well, that's kind of the point of the genre. A horror movie works best when it's able to effectively scare the viewer, ...

Some films prove that horror movies don't always need a body count to succeed.

These movies are perfect Valentine's Day viewing, as long as you don't mind some blood or seriously twisted relationships.

Whether they play with the genre's rules, push boundaries, or take a bold approach, movies like Scream and Alien will change your opinion of horror.