In 1917, a man named Max Fleischer invented the rotoscope, a combination of projector and glass drawing board that allowed animators to trace over live-action film, one frame at a time. Fleischer’s ...

Created by animator Grim Natwick, and voiced (mostly) by Mae Questel, Betty was the queen of the New York cartoon studio run by Max and Dave Fleischer — Walt Disney's only serious rival in the 1930s.

“Minnie the Moocher” is a 1932 cartoon starring two of Fleischer Studios’ most famous characters, Betty Boop and Bimbo. It heavily features the music of Cab Calloway, including the eponymous song, as ...