Religious/Christian parabel

The film can be interpreted many ways and has many layers. One possible interpretation is as a Christian/religious parabel. Firstly there are two dialogue bits that show that this idea was on the writer's mind too.
A guy in the audience asks Will: Do you want to create your own God?
And he replies: Have men not always done that?
That sounds very much like an atheist/agnostic scientist expressing his belief that there is no God and the traditional God(s) of religion(s) are man made, not technologically, but mentally.
Will then proceeds and does not create God but becomes God. A technological God. But interestingly enough the atheist/agnostic scientist does not become a soulless AI entity but rather a technological Jesus. Another dialogue bit confirms this explicitly. When Morgan Freeman visits Evelyn and they walk into the new underground lab and he sees Will on the monitor he exclaims: Jesus Christ!
Will/Christ heals the blind/sick and in the end sacrificies himself out of love for Max and Evelyn. Before that he plants the seed of "salvation" for the whole world by "transcending" human ignorance and violence with the release of the nanobots.
The somewhat bitter and sad conclusion is, that if Jesus came back again into our world, even 2000 years later we still would not really be ready (or maybe even less ready) and reject and crucify him again, because we can't deal with the consequences of his nature, presence and actions on our regular lives, values and perceptions.