I think a lot of people have the wrong idea about this movie. I walked into it thinking it was a semi-horror flick. It is not in the least. Its plot and structure are closer to an action movie than a horror movie. I thought I’d be claustrophobic. While at times I was a bit claustrophobic, the movie is shot in a way that makes you forget you are in such a confined space. This does not mean the movie cheats. It doesn’t. At no point in time does Ryan Reynolds’s character do things that would normally be impossible in a regular sized coffin. That is probably the most remarkable part about this movie. It feels absolutely real.