How many movies have given us artificial intelligence entities (computers, robots, machines) taking on human characteristics, including emotions? Way too many to mention.

Such a fantasy may have been fueled in the past couple of decades by voices that give GPS directions, function as Apple’s Siri and check us out at the grocer’s. (I prefer checking out in Spanish because el hombre sounds friendlier than the woman who guides us in English.)

In Her, filmmaker Spike Jonze, most famous for 1999’s Being John Malkovich, takes the fantasy even further. Set in the near future, hopeless romantic Theodore Twombly (Joaquin Phoenix) falls in love with his computer operating system, Samantha (voiced by Scarlett Johansson, who is never seen in the movie). “You seem like a person but you’re just a voice in a computer,” he says.

Phoenix shows his acting range by following up his powerfully crazed performance in The Master by playing this nerdy writer of love letters. That’s his job: low-tech work in a high-tech world—he writes letters for people who have outsourced this personal task. (By the way, the URL of his fictional company, beautifulhandwrittenletters.com, appears to be non-functional in our real world if you want to claim it.)

Theodore is heartbroken when he meets (or installs) Samantha because he is in the midst of a divorce from childhood sweetheart Catherine (Rooney Mara). He has a platonic female friend Amy (Amy Adams, looking pale, wearing minimal makeup) with whom he shares some of his woes.

His relationship with Samantha goes through many of the stages and episodes that real life relationships have: sharing of personal details, sex (virtual), the honeymoon period, trips to the beach, double dates, jealousy and disappointment.

Because several scenes in the film consist of conversations between Theodore and Samantha, the film is often visually tedious. On the other hand, the vision of Los Angeles created by Jonze is amazing to see: clean and modern with shiny high rise buildings and a dazzling public rail system that takes Theodore everywhere, even to the beach. (Some exterior scenes were shot in Shanghai.) Also, for some reason, the film’s costume designer has put all the men in pants with no belts.

Her is not for everyone. Its weirdness, coupled with its slow pace, may turn some moviegoers off. But adventurous movie lovers should give it a shot. Joaquin Phoenix’s performance is worth seeing and Scarlet Johansson’s is worth hearing. You might like the cool soundtrack by Arcade Fire.

Her is clever and creative and will receive more nominations and awards. It is certainly not your run-of-the-mill romantic comedy/drama.