ATLANTA — Seventy-five years after the premiere of the movie "Gone with the Wind," research is shedding light on the racial tensions that existed at the time between the producer and city of Atlanta officials. Emory University film studies professor Matthew Bernstein has conducted extensive research into the archives of the film's producer, David O. Selznick. His findings illustrate some of Selznick's concerns with the city's treatment of the film's black stars at the Dec. 15, 1939 premiere.