We agree on the A.T which should not be taken litterally.
I have always believes that the original sin is not really what is described in the latin version of the bible. Moreover the so called 7 days of the creation do not correspond to day in the current sense of the term but to either day in the God sense (equivalent to 1000 years) or in the period sense (with an undefined length).
Back to topic.
I agree that the A.A hypothesis has been poorly developped by several of its most famous defenders. Even Sitchin developped hypothesis are not well formulated or thought out. I think that it is because of the unability of men to really understand how could think or the motivations of beings far more advanced, smarter and more powerful than us. A bit like if dolphins or monkeys try to describe men, and to use their limited understanding to formulate hypothesis about us.
Do i believe in A.A hypothesis ?
Yes, but not in the sense of Van Daniken or Sitchin.
If do not believe that we were created by Aliens.
But i do believe that Ancient Civilizations met superior beings that either alter them at the genetic level and/or taught them and brought to them some of their knowledge and of their technology.
These beings were clearly humanoid but not necesseraly human like and there could be several kind/race of these beings. That could explain the so called war of the gods In fact those being could have even been completely Alien and use deception not to frighten too much human of those times.
Now, i don't know if these beings were Aliens, fallen Angels, Angels, Djinn or even more ancient and way more advanced human (potentially from a previous world/creation), but they were certainly those that those ancient civilizations worship and called gods.
Regarding the use of A.A theory in the movie like Prometheus, it could work if those Aliens are very advanced with technology and behavior beyond our comprehension. I would prefer that they were not humanoid but use their technology and/or powers to deceive us in believing that they look like us.
Moreover both their technology and their motivitations should not be fully explained. According to me what make the A.A hypothesis use in movies that poor, is the lack of imagination/creativity of authors and the will to too much explain beings supposedly far more advanced than us.
Btw, in Prometheus i hope they find good explanations to why it will be so so easy for the Prometheus crew to have access to the temple and to engineer biotech and to be able to damage the Juggernaut with the Prometheus. This is the kind of thing which deeply piss me off regarding movies where men deal with supposedly more advanced beings. This is why i really like the J.M.S approach with the First Ones in Babylon 5, where he managed to show and to explain as less of them as possible. This keeps them mysterious and fascinating.