Asa did a great work. His acting clearly showcased the character, the nervousness, the happiness, the tension, the insecure feeling and as well as the social feelings, He clearly and neatly showcased the problems of Nathan as well as the geniusness of Nathan. The story was good, the acting and the portrayal was good but some sort of vacuum was there by other characters which couldnt be fulfilled, I must say if you are one of those people who think only of Mathematics like me then it is one of the Best movies for you.