The plot starts with a magic mirror proclaiming Betty Boop to be "the fairest in the land", much to the anger of the Queen. The Queen orders her guards Bimbo and Koko to behead Betty, and with tears in their eyes, they take Betty into the forest and prepare to execute her. Betty escapes into a frozen river, which encloses her in a coffin of ice. This block slips downhill to the home of the seven dwarfs, who carry the frozen Betty into an enchanted cave. Meanwhile, Koko falls down a hole and arrives at the same cave, where the evil Queen turns him into a grotesque creature. With her rivals disposed of, the Queen again asks the magic mirror who the fairest in the land is, but the mirror explodes in a puff of magic smoke that returns Betty and Koko to their normal states and changes the Queen into a hideous monster. The queen-cum-monster chases the protaganists until Koko grabs its tongue and, with one mighty yank turns it inside out. Betty, Koko, and Bimbo dance around in a circle of victory as the film ends. This plot, such as it is, is really more a framework to display a series of gags, musical selections, and clever animation. Critics have cited the film as having some of the most imaginative animation and background drawings from the Fleischer Studios artists.
Mae Questel does the voices of Betty Boop and the Queen, and Cab Calloway does the voice of Koko the Clown, singing "St. James Infirmary Blues". The movie was produced by Max Fleischer studios and directed by Dave Fleischer.
The film has been deemed "culturally significant" by the United States Library of Congress and selected for preservation in the National Film Registry.
See also Snow White and the Seven Dwarfs.