I saw this movie a long time ago and only remember a scene where there is a room filled with what looks like body bags. The camera reveals that there is a woman alive in one. During this there is someone going around stabbing the body bags getting ever so closer to the one with the woman. She covers her mouth when the person get so close. The person zips open the bag with the woman in it revealing that the person has some sort of mask on. That person just looks away and I believe closes the bag with the woman in it and walks away.
There’s a hid-in-a-body-bag scene in “Valentine.” I’m afraid I don’t really remember many details–I didn’t watch too closely.
http://www.imdb.com/title/tt0242998/?ref_=fn_al_tt_1
The Crazies
http://youtu.be/TfeK0aN9w24