I am wondering what movie this is...?

I was at target when i picked up a movie but then decided not to get it bc i figured i cld find it on ''on demand'' but when i got home i forgt the name!lol.... it was about a couple, and it was described like this... the boyfriend or the gf disappears and ther partner is trying to find them....ugghh seemed like a great movie. it came out in 2010 i think--recent...pls help.. it was a couple maybe in their mid twenties...thx!