What can I say? I loved this movie. I loved the soundtrack. I loved the screenplay. I loved the mundaneness of it all in this futuristic society.
Science fiction usually tells grand stories about how technology in the far-future has transformed society and created new conflicts. Her takes the life of one Theodore Twombly and puts him front and center. All his weaknesses and vulnerabilities for all to see.
It's really easy to cast aside this film and laugh off the oddities (like many people in the theater did), but the film is so great because it makes us think about the nature of human relationships. What makes two people lovers rather than enemies? Can relationships transcend the physical realm? If we can love people, God, pets, ideas, food, then why can't we love an operating system? The English language is really weak here since we use love to describe so many types of relationships.
I love books and movies that make you rethink your reality. The ones that go beyond mindless entertainment and force you to think deeply about your individual role - in your community, in your society, in the universe.
Also, Scarlett Johansson's voice is mesmerizing.