In the days before "Barbie" was released, viewers online began to worry: Had it been over-hyped? Could the movie possibly live up to the promise of all the promotion and merch and wild Ryan Gosling quotes that came before it? But the movie, directed by Greta Gerwig from a script she wrote with partner Noah Baumbach, does. Gosling's off-the-walls performance as Ken has gotten a lot of praise, but the movie wouldn't work without Margot Robbie's performance as the main Barbie. As she moves from Barbieland to womanhood, Robbie brings Barbie literally to life.