The story goes that Renate Reinsve had decided to give up on acting to become a carpenter. She met with Joachim Trier, and he wrote her the lead part for his new movie, The Worst Person in the World. Reinsve had done some stage work and had appeared in several Norwegian television series, but she wasn't yet a name. Trier saw something, and Reinsve has now won a couple of Best Actress awards (including one at Cannes). The film is nominated for Best Original Screenplay and Best International Feature Oscars, and if Reinsve is absent from the nominations list, she can take pride in being at the center of a film that is highly regarded.
Trier has said that The Worst Person in the World is a rom-com for people who hate rom-coms. Honestly, I could barely tell it was a rom-com. It is an honest look at love and relationships, how difficult they can be, and how a person can struggle in relationships when they are still finding out who they are. Needless to saw, Reinsve's character (Julie) is not the person referred to in the title, but that title does reflect how we don't always see the good things about ourselves that others recognize in us.
There is more to the film than Reinsve ... in particular, Anders Danielsen Lie is excellent. But the reason to see The Worst Person in the World is Reinsve, and the character Trier has created for her.