Prometheus

"If there is anything to get from the film, it is that there are those who, even having evolved so far as to have an intelligent mind, would still revert to inter-species conflict. But there is also the alternative to this age-old state of affairs, through a true search for life and the meaning of it."

In the opening of Prometheus, we are first shown the "Garden of Eden" - the age of no humans. The music is raw and the scene is magnificent and full of raw power (the waterfall), real and deep in 3D. An "engineer" alien sacrifices himself, sowing the DNA that codes for human beings at a magnificent yet raw waterfall, signifying a point of no return. The metaphor is one of fertilizing Earth.

Man's discovery of the aligning dots has defined the position of the stars the engineers came from, triggering the search of the meaning of humanity - why the human race was created. Those who believed that humans were created by alien forerunners fund further research.

The starship Prometheus sets off into deep space in search of this planet. They eventually find one with special alien buildings on it.  The alien structures look like mounds, with cave systems inside.These eventually turn out to be alien spacecraft.

Man's survival in space is dependent on many Faustian bargains. The robot technology that created David has extended the arms of evil powers, but has also made long term space travel possible. David may have killed Holloway, but Shaw must now depend on David to get off the planet.
Biotechnology has also been a Faustian bargain. It has allowed the Aliens to create humanity, but also destroyed them when the slime creatures destroyed them all.

Vickers is most likely a robot because no human could match David in strength, rank in the leadership hierarchy (answering to Weyland) or style (Vickers and David have similar style, appearance in uniform and mannerisms). She is also desperate to prove her humanity by offering sex to the captain. The human females onboard are very different in personality.
David and Vickers do sound like adam and eve, except their creator is Weyland, a human. So, everybody is made by someone else. This is a plausible way of thinking.

Who are the enemies in the film?
Was it the "Engineer aliens" or the "chestbusters"? Or was it the Weyland Corporation people?
Both. Weyland believed he got the tech and that the tech made him a god, but at the expense of other people. The aliens also believed themselves as being superior beings - they didn't care for what they created. And the chestbusters? They were the parasites that embodied conquest by sucking the life out of its hosts and destruction.
Everybody who wants to be god was a deadly threat to the protagonist Shaw. If there is anything to get from the film, it is that there are those who, even having evolved so far as to have an intelligent mind, would still revert to inter-species conflict. But there is also the alternative to this age-old state of affairs, through a true search for life and the meaning of it.

Looking back at the title, Prometheus is in a sense, an ironic title. Prometheus is supposed to bring fire to mankind, but instead, it nearly brought about the total destruction of mankind by the engineers. And instead of the sharing of technological knowledge, the hierarchical elite aboard Prometheus are always trying to find some secret for themselves at the cost of others - a dark agenda always loomed above, unknown to most of the crew. They do not bring light and fire, but darkness.

Yet, perhaps it is the ending that inspires to the story of Prometheus. Humanity (Shaw) and technology (David) ride out into the stars in search of the true meaning of life, leaving the carnage behind. It is they who truly embody the spirit of Prometheus and enlightenment, not the elite who believe they are gods and masters.
I believe this is the spirit we hope to gain from the movie - to kindle an undying fire in the heart and a light in the mind to live despite all evil, darkness and destruction. It is not enough to desire knowledge, but also the motive why, for it can always be used against oneself.

While it may be great to end the analysis here, I believe there is another explanation. The Engineers, being a strong and powerful species, most likely embraced strength. It is  possible that this adventure was only the trial to see whether humanity was worthy of more knowledge of its past, and its destiny. And why do the Engineers want to destroy their creation anyway?