Her (2013)

The closing film of 2021 was Her.
The Storyline
A sensitive and soulful man earns a living by writing personal letters for other people. Left heartbroken after his marriage ends, Theodore (Joaquin Phoenix) becomes fascinated with a new operating system which reportedly develops into an intuitive and unique entity in its own right. He starts the program and meets “Samantha” (Scarlett Johansson), whose bright voice reveals a sensitive, playful personality. Though “friends” initially, the relationship soon deepens into love.
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.
The film created lively debate amongst film club members as the concept and believeability varied in appeal. There was some surprise at the UK rating.
Link to Wikipedia
Link to IMDb Site
Link to Rotten Tomatoes
Running Time – 3hrs 15mins (195 minutes)
UK Classification – 15