One of the most beautiful scifi romantic movie I have ever seen! Its really heartwarming & depressing at the same time. I have not been a fan of Joaquin Phoenix, but no doubts he has done a great job, also the director Jonze.has given a marvelous script along with a brilliant direction. i think the movie relates to people who are stuck in life, dealing with difficult situations, people who isolate themselves from real life and start an unrealistic habit, like sharing your life with an OS. Scarlett Johansson just provides her sexy voice, it was just too hard not to fall in love with her! This movie is a must watch for everyone!!!