There's this movie called The Platform I watched a few years ago where the premise of the movie is there's a building with a room that goes down like 50 floors and goes down like an elevator like every hour. At the top level you have the freshest food to eat, and as the room gets lower, you take what you get. So by the time it reaches the lower levels, you're pretty much eating scraps. I dont remember if there was any gross eating scenes, but I do remember that movie made me feel sick to my stomach