2001: Space Odyssey is sort of a symbolic account of Nietzsche's philosophy in that it traces the progress of man moving toward the ideal new humanity.
Nietzsche sought to inshrine aristocratic values by positing the uber-man or superman as our goal. In the first chapter of his book Ecce Homo, Nietzsche explains, "The word 'uber-man' denotes a type of supreme achievement, as opposed to 'modern' men, 'good' men, Christians, and other nihilists."
Now compare this to Saint Maximilian Maria Kolbe who transforms the meaning of uber-man or superman in a Catholic way:
"He who advances according to the will of God is really a superman, a supernatural being who rises infinitely higher than all geniuses. Such a soul acts according to infinite goodness and power." - St Maximilian Maria Kolbe, Aim Higher 4.24.For Nietzsche, the superman is not the Christian. For Kolbe, the superman is simply the Christian saint who becomes like God - one who perfectly conformed to Christ through love.