Horror Films or Games?

http://www.amnesiagame.com/

Last night I downloaded the demo of the game linked above. Wow.
To say that it was captivating would be an understatement. I have always been un-phased by horror games in the past but this one was different. Definitely worth a try with the demo and buying the game would only support the creators to make more games :D

But, I digress, back to my original title.

What do you find scarier? Horror films or games?
Obviously a vast majority of films are not done from a POV perspective, meaning that any experience on screen is less... personal, but it does allow them to take many different shots away from the characters allowing them to weave their desired tone and atmosphere into the film without restriction.

Another factor is involvement. With a game, you affect what happens, if you walked into that dark room and didn't defend yourself, your character (who is almost becoming part of you as you play) is going to die. With a film you can sit back and allow the carnage to happen, but here you have to save this person.

Unless your feeling a little morbidly curious.

Readers, any thoughts?