If you have yet to see, go!
Principal photography on Her took place during the summer of 2012. It was mainly filmed in Los Angeles with two weeks in Shanghai. During production of the film, actress Samantha Morton performed the role of Samantha by acting on set "in a four-by-four carpeted soundproof booth made of black painted plywood and soft, noise-muffling fabric". At Jonze's suggestion, she and Joaquin Phoenix avoided seeing each other on set during filming. With her blessing, Morton was later replaced by Scarlett Johansson. Jonze met Johansson in the spring of 2013 and worked with her for four months. Following the recast, new scenes were shot in August 2013, which were either "newly imagined" or "new scenes that I had wanted to shoot originally but didn't"