Yip Yip Yippy

Yip Yip Yippy is a 1939 Fleischer Studios animated short film. The short was the final official entry of the "Betty Boop" series. Although this was billed as a Betty Boop cartoon, it didn't feature Betty Boop.

Synopsis
A drugstore cowboy reads a dime novel and imagines himself as an Old West cowboy battling a cattle rustler.