Plane Dumb is the 12th Van Beuren Tom and Jerry cartoon,[1] released on June 4, 1932.
In an ill-advised effort to fit in among the natives, the two decide to don blackface and talk in a stereotypical African-American dialect.
After encounters with sharks, an overly-friendly octopus, and a whale, Tom and Jerry make it to the mainland.
Once Tom and Jerry come out of the cave, African tribesmen (also stereotypically portrayed as spear-chuckers with bones in their hair) appear from behind almost every rock and crevice, outraged at the sight of the two in blackface, and begin an angry pursuit.
The cartoon ends with Tom and Jerry wiping the blackface off their face, still running away from the Africans.