In the 1939 film 'The Wizard of Oz', what colour were Dorothy's socks while she wore the ruby slippers?

In 'The Wizard of Oz', Dorothy, played by Judy Garland (1922-1969), wears a blue and white dress and red ruby slippers. Her socks were blue, the same colour as her dress. Released in 1939, the film is based on L. Frank Baum's (1856-1919) children's fantasy novel 'The Wonderful Wizard of Oz' (1939).

The film follows Dorothy, a girl from Kansas who is swept away by a powerful tornado to the Land of Oz. When she landed, she accidentally killed a wicked witch, who owned of a pair of ruby slippers. Dorothy wants to go home, but only the Wizard of Oz can help her. To find him, she must go to the Emerald City by following the Yellow Brick Road. She set off wearing the witch's shoes and made three friends on the road: a Scarecrow, a Tin Man, and a Cowardly Lion, played by Ray Bolger, Jack Haley, and Bert Lahr.

Among the many differences between the film and the novel are the colour of the shoes. Baum wrote of silver shoes rather than ruby. The production team changed the colour to make a greater impact during the coloured section of the film. The scenes shot in Kansas at the beginning and end were in black and white. Only the Land of Oz appeared in colour.

Several songs feature in the film, including "Over the Rainbow", which won the Academy Award for Best Original Song. In 1998, the film was sixth on the American Film Institute's '100 Years... 100 Movies list' and has been chosen for preservation in the United States National Film Registry.