Gattaca Movie Questions?

The spiral staircase is symbolic of the spiraling dna. The external environmental challenge is parallel to the emotional and mental challenge of overcoming one's limitations. He struggles greatly, and yet his unwaivering will pushes him to reach new heights and realise new ways of being that would seem impossible. Science fiction takes concepts of todays society (superficiality - self limiting beliefs) and emphasises them through extreme technologies, ie. total dna testing.