Stewart and Assayas find a groove in the shadow of celebrity

Kristen Stewart, left, and writer-director Olivier Assayas pose for a portrait to promote their film, “Personal Shopper,” on Thursday, March 9, 2017, in New York. Kristen Stewart, left, and writer-director Olivier Assayas pose for a portrait to promote their film, “Personal Shopper,” on Thursday, March 9, 2017, in New York.