‘The Wizard of Oz’ IMAX 3D Exclusive Poster: Dorothy & Co. Dazzle in Vivid Color In honor of the 75th anniversary of the 1939 Judy Garland classic, Warner Bros. is bringing the journey to the extra big screen in IMAX 3D. That’s right, the Good Witch of the North will be floating in her bubble right into your face, and those flying monkeys? You better watch out. The new poster for the film’s IMAX 3D experience is so vivid and glistening we feel like it’s 1939 again and we haven’t seen color before. Check out the exclusive poster below, as well as a throwback to the original poster. “The Wizard of Oz” in IMAX 3D comes to theaters for a limited one-week engagement starting September 20.