World Cinema Margot Robbie Was Surprised That Mattel Got ‘On The Ride’ With Barbie So Quickly Here's how Mattel agreed to party with Greta Gerwig and Margot Robbie's vision for Barbie. SHARE ON: admin — July 17, 2023 Here's how Mattel agreed to party with Greta Gerwig and Margot Robbie's vision for Barbie.