The moment Dorothy steps into Munchkin Land, it's crystal clear: she's definitely not in Kansas anymore. This iconic moment wasn't just a leap into a magical world, but a dive into the Technicolor revolution, making everything from the yellow brick road to the Emerald city pop in vivid color.

This magic was no small feat: Technicolor films were crafted from three separate rolls of film, each capturing one of the primary colours through a prism-split image. These rolls were then developed, dyed in vibrant primary hues, and combined to conjure a full-colour cinematic tapestry.

Although The Wizard of Oz didn't debut Technicolor (that honor goes to Pioneer/RKO's Becky Sharp in 1935), the use of color was still so novel that the transition mid-scene is said to have elicited gasps from audiences.