As disastrous as the production and treatment of the actors in The Wizard of Oz was, one really good thing came out of it. The film directly helped multiple European actors with dwarfism escape Nazi occupied Europe right before WWII. They were a part of the theater troupe “Singer’s Midgets.”
https://www.reddit.com/r/BeAmazed/comments/1uzce15/as_disastrous_as_the_production_and_treatment_of/