7 Aug - Greta Gerwig's "Barbie" has now reached US$ 1 billion mark at the box office. The movie, which is now in its third week, added US$ 54 million to its domestic collection, amassing US$ 460 million in the US, and making US$ 1.03 billion globally in just 17 days. This means that Greta Gerwig is now the only female director to be joining the 1 billion club, whose "members" include James Cameron and the Russo Brothers. It is the second film of the year to achieve the feat following "The Super Mario Bros" earlier this year. Meanwhile, Christopher Nolan's "Oppenheimer" is also doing well, grossing US$ 552.9 million at the box office and becoming his sixth film to surpass the 500 million mark.