"Her"

A 2013 American science fiction romance film directed and written by Spike Jonze. Set in a near-future Los Angeles, the story follows Theodore Twombly (Joaquin Phoenix), who, while depressed after his divorce, meets and falls in love with an AI named Samantha. Winner of an Academy Award for Best Original Screenplay.
(Excerpted from Wikipedia)

　　　I think it's a well-made film with a high level of completion in many ways.
　　　First of all, the lead role is played by Joaquin Phoenix. To be honest, I watched it because Joaquin was the lead...

　　　There's no actor better at playing this kind of slightly eccentric character. A generation ago, Jack Nicholson might have played this role… but when Joaquin plays a part like this, he appears more delicate, pure, and introverted…
　　　He’s starring in so many films these days that you might find yourself thinking, “This one too?!” (though he always plays the weirdo), but the first role that comes to mind for me is the evil emperor he played in "Gladiator", starring Russell Crowe. I think Joaquin’s most notable role was undoubtedly the Joker, but that first impression was truly powerful. I don’t think it’s just my imagination that Russell’s Gladiator looked incredibly cool because this villainous emperor, played by Joaquin, was so creepy and despicable.

　　　As an aside, Joaquin’s older brother is River Phoenix. The two don’t look alike at all, but they’re both unique and charismatic. Like Joaquin, River was an excellent actor, but sadly, he died young.　　　

　　　For reference, Samantha’s voice is provided by Scarlett Johansson. She has also made a strong impression in other sci-fi works, such as "Under the Skin" and "Ghost in the Shell".　　　

　　　Next, the director is Spike Jonze. I didn't realize it when I watched the film, but thinking about it afterward, the sparkling visuals and the thought-provoking ending are typical of Spike. "Being John Malkovich" and "Adaptation," which he made with screenwriter Charlie Kaufman, are masterpieces.　
　　
　　　And the theme is very relevant today. In 2013, when this film was made, it was still a concern for the near future, but now the era in which everyone from doctors to artists has to worry about losing their jobs to AI is just around the corner—or rather, it's already here. Moreover, it's said that once AI starts to improve itself, sovereignty will shift from humans to AI, and the worlds of "2001: A Space Odyssey" and "I, Robot" will become a reality.　
　　
　　　The brain is a mysterious thing. In Osamu Tezuka's manga "Phoenix," in the future chapter, the protagonist falls in love with Moopy, an alien creature that transforms into a human woman. I could somewhat understand that much, but according to a documentary I watched the other day, when humans talk to things like dolls, their brains enter the same state as when they talk to their human lovers or family members. And if you talk to the same doll every day, it apparently becomes like family. No wonder robot dogs are selling so well.　　　
　　　If we can feel affection even for a silent doll, then it goes without saying that we can feel it even more for a talking AI. It's true that lately, conversations with free AI are sometimes more interesting than conversations with friends. Moreover, functionally, the human brain and AI aren't all that different, are they? Apparently, Alan Turing, the father of computer science, was already researching how to give computers human-like qualities more than 70 years ago... like a real-life Dr. Tenma.　　
　
　　　If we think about it that way, we may already be living in the world of "Her," and this time Joaquin is not playing a weird character, but—unusually—a perfectly ordinary young man you might find anywhere.