Iconic gowns worn by Vivien Leigh in Gone With The Wind are among 300 items related to the classic film set to go on display in Texas to mark the movie's 75th anniversary. The Making of Gone With the Wind exhibition will debut at the University of Texas and Austin's Harry Ransom Center in September (14). Highlights also include costume sketches, storyboards, posters and rare make-up stills featuring Leigh, Clark Gable and Olivia De Haviland. The green curtain dress Leigh wore as Scarlett O'Hara in the movie will be on show for the first time in more than 25 years. The collection comes from the archive of movie mogul David O. Selznick, who produced the 1939 film.