Her is a 2013 American romantic science-fiction drama film written, directed, and produced by Spike Jonze. It marks Jonze's solo screenwriting debut. The film follows Theodore Twombly (Joaquin Phoenix), a man who develops a relationship with Samantha (Scarlett Johansson), an intelligent computer operating system personified through a female voice. The film also stars Amy Adams, Rooney Mara, and Olivia Wilde.
Jonze conceived the idea in the early 2000s after reading an article about a website that allowed for instant messaging with an artificial intelligence program. After making I'm Here (2010), a short film sharing similar themes, Jonze returned to the idea. He wrote the first draft of the script in five months. Principal photography took place in Los Angeles and Shanghai in mid-2012. The role of Samantha was recast in post-production, with Samantha Morton being replaced with Johansson. Additional scenes were filmed in August 2013 following the casting change.