One of the best sci-fi movie I ever watch... same league with 'Her' and 'Man From Earth'. Chemistry between the two main actors is awesome [maybe because both of them husband and wife in real life]. The movie is based on hard science fiction [more percentage of the real science compare to other sci-fi movies]. The movie touch on the 'transit photometric' and 'quantum entanglement', the first time I've seen people these two concepts into entertainment... and 'first contact' concept in a very original way. I can't express my love enough on this very underrated masterpiece.