For me, it was Night of the Living Dead. At the time I didn't realize why it bothered me so much. No I understand it was being stripped of everything that makes you human, and your forced to just consume. I really was scared that I would be the one bitten, and forced to harm my family.

Dawn of the Dead was another one. Not because of the gore. It made me look at what we want out of life, and how meaningless it all is. I mean they got everything they wanted, money, clothes, all the cool toys and stuff. Yet they where forced to stay isolated. Even if they made it out there was no safe place to go live. In the end that was what was most important. To live without fear. To be free.