Six years after the big ape fell from the Empire State Building, flying monkeys attacked Dorothy Gale and her friends in Oz. (Need more animals? The Cowardly Lion. And Toto too.) The film, which flopped in its original release but went on to entertain families happily ever after, looks Technicolor terrific on this three-disc set, which includes five promo documentaries, 10 period portraits of the stars and a rare audio clip of Judy Garland sobbing her way through a reprise of Over the Rainbow--a surprise minute or so of heartrending musical melodrama.