Aristotle said time is a measure of change, and this movie is about changing in time, through time, while remaining the same person. That's a philosophical paradox and a moral dilemma. But 'Casablanca' says it's possible. You can have both. That's what it means. And that's my wish for you: that you would have both.
Robert McKeeAnxious, inexperienced writers obey rules. Rebellious, unschooled writers break rules. Artists master the form.
Robert McKee