Actress-producer Margot Robbie pitched `Barbie` as a billion-dollar movie as she tried to convince studios to make the picture by comparing it to `Jurassic Park`.

"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, who stars as the famous doll in Greta Gerwig`s much-hyped new film, reports aceshowbiz.com.