Little Black Sambo (1935, Banned Cartoon)
Little Black Sambo, produced in 1935 by UB Iworks Studio. Little Black Sambo is a controversial book and this cartoon contains racist stereotypes typical of the time. The short film shows up on my banned cartoons and racist cartoons lists.
More information on this movie here: http://en.wikipedia.org/wiki/Little_Black_Sambo_%28film%29