The French actor, director, and producer Rebecca Zlotowski made a splash in 2016 with the World War II film “Planetarium,” starring Lily Rose and Natalie Portman. Although it’s been a few years between that film and her follow up, “An Easy Girl,” Zlotowski has been very busy. She directed episodes of “Savages” on Canal +, co-directed “J’irai où tu iras” and started the 5050×2020 movement, a campaign for gender parity at the Cannes Film Festival.