Don't be fooled by the "Horror" connotation Yes, this is not you typical, garden-variety, knife-wielding-maniac, buuu-scream film. Its something else altogether.
In this particular case, i actually think the trailer is bad publicity.
Started watching this with the idea that this would be the stereotypical horror flick, with blood poring down the walls and a scare every other frame, as the trailer seems to reveal. No, not that at all.
Its a straight forward movie about some people trapped in an elevator, one of them being Satan, and the obvious results of this unfortunate set of circumstances...OK, after reading this i question my own review.
No, no, this is as mainstream as any "Constantine"(2005), "Legion" (2010) or "The Prophecy" (1995) and all its followup's. In some of these cases you get more buuu-scream action.
Very watchable, extremely entertaining and a good story, witch is all you can ask for a movie with people incarcerated in an elevator with the master of all evil.
Epic? No it is not. Good movie? Yes, definitely, to my own surprise.