This is supposedly "a blood relative" to Cloverfield. I absolutely loved Cloverfield. When they came out and said that there wasn't going to be a sequel to it, I was a little devastated. Now I'm feeling pretty good.
http://www.imdb.com/title/tt1179933/
https://en.wikipedia.org/wiki/10_Cloverfield_Lane
Oh, and I have a huge crush on Mary Elizabeth Winstead, so there's that.