<P> In addition, Bolger's original recording of "If I Only Had a Brain" had been far more sedate compared to the version heard in the film; during this time, Cukor and LeRoy decided that a more energetic rendition would better suit Dorothy's initial meeting with the Scarecrow (initially, it was to contrast with his lively manner in Thorpe's footage), and was rerecorded as such . At first thought to be lost for over seven decades, a recording of this original version was rediscovered in 2009 . </P> <P> Cukor did not actually shoot any scenes for the film, merely acting as something of a "creative advisor" to the troubled production, and, because of his prior commitment to direct Gone with the Wind, he left on November 3, 1938, when Victor Fleming assumed directorial responsibility . As director, Fleming chose not to shift the film from Cukor's creative realignment, as producer LeRoy had already pronounced his satisfaction with the new course the film was taking . </P> <P> Production on the bulk of the Technicolor sequences was a long and exhausting process that ran for over six months, from October 1938 to March 1939 . Most of the cast worked six days a week and had to arrive as early as 4: 00 a.m. to be fitted with makeup and costumes, and often did not leave until 7 pm or later . Cumbersome makeup and costumes were made even more uncomfortable by the daylight - bright lighting the early Technicolor process required, which could heat the set to over 100 ° F (38 ° C). Bolger later said that the frightening nature of the costumes prevented most of the Oz principals from eating in the studio commissary; the toxicity of Hamilton's copper - based makeup forced her to eat a liquid diet on shoot days . It took as many as twelve takes to have Toto run alongside the actors as they skipped down the yellow brick road . </P> <P> All of the Oz sequences were filmed in three - strip Technicolor . The opening and closing credits, as well as the Kansas sequences, were filmed in black and white and colored in a sepia - tone process . Sepia - toned film was also used in the scene where Aunt Em appears in the Wicked Witch's crystal ball . </P>

When did the wizard of oz have color
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