I was a little surprised by this Betty Boop cartoon. Although made in 1935, when racial stereotypes were common in animation, I thought that this short - in which Betty flies to Japan for a performance - portrayed the Japanese people in a very respectful manner. In addition to the fact that Betty performs a song both in English and Japanese, the rendering of the Japanese audience members was very attractive and lifelike. In fact, they look much more human and less cartoonish than the (presumably) American audience at the start of the short. From the Internet Archive, here is Betty Boop in A Language All My Own.