"Is that you, Myrt?" is a catch phase heard weekly on the then-popular radio show, "Fibber McGee and Molly".
Hitler's wide-mouth yell at the end of the cartoon is done in the style of popular movie comedian Joe E. Brown.
The very realistic animated image of Adolf Hitler was rotoscoped.
This short, as well as a few other Warner shorts, is in the public domain, after Associated Artists Productions (which had somehow acquired the films in question and broadcast them on television in the 1960s) neglected to renew the copyright in time.