Barbara Ling, an Oscar-winning production designer known for her work on Quentin Tarantino’s “Once Upon a Time in Hollywood,” has died at age 73. Multiple outlets report that she died on July 9. Ling’s career spanned about four decades, and she worked across film and other entertainment projects. Her film credits include Oliver Stone’s “The Doors” and Joel Schumacher’s “Falling Down,” and she also designed the sets for Antoine Fuqua’s “Michael.” Other reported credits include “Fried Green Tomatoes” and “The Pee-Wee Herman Show,” as well as “Michael” and “Michael” is cited among her later film work. Sources consistently describe her as an experienced production designer whose sets and visual environments contributed to a range of productions, from major studio films to distinct, character-driven projects. Her Oscar win is tied to her production design work on “Once Upon a Time in Hollywood.”