Greta Gerwig is making history! Three weeks after its debut in theaters, Barbie has surpassed $1 billion at the box office, making Gerwig the first female director to hit this box office milestone as a solo director.In a statement, Warner Bros. said the fantasy-comedy movie has taken in $459 million from domestic theaters — counting the United States and Canada — and another $572.1 million overseas since it hit theaters, for a total of $1.0315 billion.