Zack Sharf Digital News Director As a producer of “Barbie,” it was up to Margot Robbie to convince a studio that her vision for the film would lead to financial success. No wonder the Oscar nominee flat out said during pitch meetings that she believed a “Barbie” movie could bring in $1 billion at the worldwide box office. Such success depended on landing writer-director Greta Gerwig, Robbie stressed to execs. “I think my pitch in the green-light meeting was the studios have prospered so much when they’re brave enough to pair a big idea with a visionary director,” Robbie said in an interview with Collider. “And then I gave a series of examples like, ‘dinosaurs and [Steven] Spielberg’ – pretty much naming anything that’s been incredible and made a ton of money for the studios over the years. And I was like, ‘And now you’ve got Barbie and Greta Gerwig.’ And I think I told them that it’d make a billion dollars, which maybe I was overselling, but we had a movie to make, okay?”