Australian here. Just want to point out how fanciful and inaccurate that film was. Kangaroos do not speak German. They lack the ability to form anything near the correct sounds with their vocal chords, tongue, palate etc.

They communicate with us in series of clicks and a gross body language, and only in response to very clear questions, like “Do you know where Sonny is? Can you take me to him?”

A kangaroo might respond “tsk tsk-tsk!” and then hop in the direction of Sonny.

And kangaroos are almost always firm greenies on the political spectrum, but I can see how a communist kangaroo would be comedic. I did have a chuckle at that bit of German humour.