In my own opinion, the theme of this film is about inter-racial marriages in an open society. And here is a short article about it !

>>1
Oh, yes, clearly. Though the Kangaroo is an Australian animal, it looks like the director chose to give him Black African facial features here. Although she says that the model for his face was Adriano Celentano in the 1980 film "The Taming of the Scoundrel". To me, the scowling facial close-ups make the kangaroo look like a not-very-smart bully, and his genteel voice (once he finally speaks) does not seem to fit. But I guess the director likes the type, and she says (in that article) that the duck is like herself.
The portrait on the wall is of Vladimir Vysotsky, an excellent Soviet musician and actor who died young due to ruining his health with heavy alcohol, tobacco and drug use. He was meant to be the original voice for the wolf in "Nu, pogodi". He once starred in an excellent film ("How Czar Peter the Great Married Off His Moor", for which I made subtitles some years ago) where he played in blackface as Pushkin's African great-grandfather.

Another thing I noticed is that as soon as the Kangaroo agrees to allow the duck to tag along and sets off, the duck immediately breaks all the promises she made; she ditches the socks and cigars, and dances all over him instead of staying on the end of his tail as he asked. I guess the subtext here is "make whatever silly promises are necessary to get the other party to commit, because you'll never need to actually keep them"?