This is one of those old "Rainbow Parades" cartoons which mixes life-action with animation. It usually begins the story with a little kid doing something and then the animals in the story turn into animated figures. That's what happens here, too, as little boy puts some mice into a little girl's doll house. Then, the boy and girl watch the mice run around. That part is a kind of lame.
All of sudden, we see an animated story about an old "wizard" who is mixing chemical formulas in his lab with the intent of "turning ugly into beauty" because "nature made too many ugly things." Yeah, right. Anyway, at least he can sing and he explains all these thoughts in song. They loved to sing in 1930s cartoons.
His formula works, as we see lizards transformed to beautiful birds, frogs into cute chipmunks, etc. However, when something accidentally spills into the mix, the results are disastrous and the wizards learns you can't play God and "to leave well enough alone."
All of sudden, we see an animated story about an old "wizard" who is mixing chemical formulas in his lab with the intent of "turning ugly into beauty" because "nature made too many ugly things." Yeah, right. Anyway, at least he can sing and he explains all these thoughts in song. They loved to sing in 1930s cartoons.
His formula works, as we see lizards transformed to beautiful birds, frogs into cute chipmunks, etc. However, when something accidentally spills into the mix, the results are disastrous and the wizards learns you can't play God and "to leave well enough alone."