I'll have my final E3 report up later, but I wanted to give some quick thoughts on Prometheus while they're still fresh in my mind.
Ultimately, you should go see this movie, but realize that while the production is magnificent, the same cannot be said of the script. If you are willing to comb through the details of the film in search of rumored symbolic elements then you may have a better opinion of this film, but regardless those elements do not excuse the script for it's flaws.
It's a well-made movie though and more head-scratching than disappointing. It should make for a very interesting Blu-Ray, assuming it gets the proper bonus features.