I like this movie.
"Prometheus relies heavily on the works of Erich Von Daniken, the author of The Chariots of Gods and other works that affirmed that aliens created men. It also defends the views of people like Zachariah Stichin, who say that Sumerian gods from outer space, the Anunnaki, created men.
In their worldview, there is no space for the Christian God, judged to be a human fable. Obviously, in their perspective, these Engineers would return some day to help us save humans from ourselves.
Two particular scenes show the anti-Christian character of the movie. First, Jesus is depicted as an alien, who was sent to observe us but was instead killed.
That’s why the punishing mission was started 2000 years ago. Ridley Scott confirmed this in interviews. Later, at the end of the movie, Liz, the Christian, takes back her crucifix necklace and is said to have had her faith returned.
In fact, she changed her faith, from a Jesus who is God, to a Jesus who is an alien. That’s why she heads to the Engineer’s planet, to meet this new Jesus.
So there we have it. Our real gods are aliens, and we need to drop our old religion and start worshiping them. Those who are worthy will receive a DNA boost that will make them become gods as they already are. This is the gift of Prometheus, the god who brought fire to humankind in a self-sacrificing manner."