Less a Biography than a bizarre and fantastical depiction of a portion of three real people's lives. To say this represents the thoughts, ideas and writings of Nietzsche is to ridicule him and his two fellow travellers Lou Andreas-Salome and Paul Ree.
Their love triangle of personal and sexual freedom is, in this film, one of emotional slavery, loveless lust and jealousy. Misery and loss rule.
The only deep understanding I get from this movie is that it sides with religious conservatism. In other words, Nietzsche suffered from the wages of sin. He was a drug addled, diseased fool and his rejection of religion whilst embracing sexual freedom caused a swift and vicious reprisal from god.
It wouldn't have five stars if it weren't for the good acting.
Review of Beyond Good and Evil
