Alfonso Cuarón directs and co-writes one of the best science fiction films you’ll ever see. For such a small scale and simple idea this film works perfectly within the genre. For me the standout contributor to the film is cinematographer Emmanuel Lubezki, whose work for this film helps to make the dystopian world hauntingly beautiful and actually quite scary. Lubezki is one of the greatest minds working in cinema, and as he has proven numerous times, he is at his best when collaborating with Cuarón. Some may find it boring, but it is an intelligently written and perfectly paced masterpiece.