There have been controversies about that sort of thing.

I know the Oscar-winning movie The Tin Drum as an example. The book by Günter Grass is a very serious, highly celebrated piece of German post-war literature. It takes place around WW2. The protagonist has the mind of an adult in the body of a child. I guess the idea is that he is the other way around from most people?

The movie was banned in Ontario and Oklahoma, for a time. en.wikipedia.org/wiki/The_Tin_Drum_(film)#Censors…

With European societies shifting right, I doubt such a movie could be made today, but we aren’t at a point where it would be outright illegal.