Each year the Academy Awards ceremony celebrates talents on the silver screen—but Atlas Obscura likes it behind the scenes, where movie magic is made from unexpected ingredients (think celery and whipped cream) and in unusual places (an abandoned Paris subway platform and one particular Los Angeles alley). Here are some of our favorite Atlas Obscura stories that reveal a different side of Tinseltown. The Forgotten ‘China Girls’ Hidden at the Beginning of Old Films by Sarah Laskow Few people ever saw the images of China girls, although for decades they…