The iconic transition to Technicolor in The Wizard of Oz (1939) was a groundbreaking moment in film history, achieved entirely in-camera. The Kansas scenes were filmed in sepia tone, with the set and props meticulously painted to match. Judy Garland’s stand-in wore sepia-colored clothing, blending seamlessly with the monochromatic setting, creating the illusion of a dull, dreary world before the vibrant Oz reveal. This clever technique relied on precise coordination and artistry. As Dorothy step