I still don't understand why so much of the stuff above was cut, though. Prometheus would have been a better movie if a lot of Spaight's set up had been retained.
All of that explanatory stuff may have remained in Lindeloff's script too, and just ended up on the cutting room floor. I suppose it is a fine line between dumbing the film down by explaining too much that should be obvious, and supplying too little. None of it was really necessary for the film, as most of those points were addressed or explained anyway for those paying close attention, but a lot of it well written stuff that definitely would not have hurt the film.
Like these lines.
DAVID
Your hypothesis is...bold. The
audacity of it. Your climate data’s
undeniable: the Holocene Epoch was
engineered. Dr. Watts, your genetic
studies are equally conclusive. Pulses
of cultural change are harder to
prove, but even there your case is
strong. I believe in your “Engineers.”
________________
WATTS
The air here will kill you, so keep an
eye on your supply and watch your
seals. Pathogen tests are clean.
_______________
VICKERS
Mr. Weyland believes. That’s enough.
She walks them toward the door. Interview’s over.
VICKERS (CONT’D)
Now we’re out of communication, you
can tell the crew what we’re doing.
WATTS
They don’t know? They volunteered.
VICKERS
They volunteered blind. Classified
job, triple pay.
________________
HOLLOWAY
I think all our mythologies are race memories
of the Engineers. Horus the
Sun God. Prometheus bringing fire from
heaven. A pillar of fire, a pillar of
smoke. The Engineers are the gods.
Kamarov stiffens, smelling blasphemy.
KAMAROV
The mythology gods maybe. God is God.
______________
They raise cups and drink. Even the crew moved by the moment.
But Janek smiles crookedly and toasts again.
JANEK
To Milburn and Fifield. The first
human beings to freak out, get lost,
and sleep in their suits in the ruins
of an alien civilization.