Color debut
Everybody knows this one, but we'll include it anyway.
This film and Gone With the Wind were the two films where Technicolor made its debut.
They showed it off when Dorothy opens her front door and walks into the land of Oz.
Can you imagine being in the theater in 1939 and a black and white film suddenly turns into color?
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Top 20 Wizard of Oz facts
FanfictionLet's pay some attention to the men behind the curtain.