In the history of Hollywood, very few people — 28 to be precise, all men — have had the sole directing credit on a billion-dollar movie.
Make that 28 men and one woman: Greta Gerwig.
“Barbie,” directed by Ms. Gerwig from a script she wrote with her partner, Noah Baumbach, will finish the weekend with more than $1 billion in ticket sales at the global box office, according to Warner Bros. No movie in the studio’s 100-year history has…