I'm trying to find the name of a movie with a creepy nun in the trailer?

I saw a preview for a movie a few weeks ago. It was kind of a scary-Catholic sort of movie, involving demons or possessions or something like that I think! In one seen in the trailer it showed a person look at a nun and she looked back and the nun's face turned all evil. I think it was coming out in theaters like recently, not sure though! Please help! I'm searching online but can't find anything! Best answer to first person who can give me the name! Thanks so much!