What is the movie name of the barbie doll turns into a real one?

The movie you're referring to is "Barbie" (2023), directed by Greta Gerwig. In this live-action film, the iconic Barbie doll, played by Margot Robbie, embarks on a journey that explores themes of identity and self-discovery after she leaves the fantastical Barbie Land to experience the real world. The film also features Ryan Gosling as Ken and incorporates a blend of humor, social commentary, and nostalgia.