Pixly is personalized movie recommendation app, similar movie finder and social movie discovery platform. You can get very personalized movie recommendations.
A Good Movie to Watch - Highly-rated, little-known movie suggestions
TasteDive - TasteDive recommends similar music (musicians, bands), movies, TV shows, books, authors and games, based on what you like.
StayIn - Answer a couple of questions and get a movie to watch
Letterboxd - Letterboxd is a social site for sharing your taste in film, now in public beta.
Find a Film Fast - Movie recommendations personalised for you
IMDb - Internet Movie Database