Stop reading reviews and make your own mind up! The movie is great, the script, not so much.

Rating: 9/10 (1 June 2012)

I'll say it straight away, the script was crap. Everything else was brilliant! The acting, 3D, music, plot etc. were all great.
It lives somewhere between Alien and Aliens. With a beautiful opening, showing the "Creation" of man.
The scenes involving the ampules were amazing and the "surgery" scene was an immediate classic. The ending seemed to have been slapped on and was a bit cheesy but the movie as a whole fits perfectly within the Alien universe and does not detract from the myth as it does NOT explain the LV-426 derelict, it merely explains and I say explains lightly, what those beings were and what they did for mankind.
I hope that the Blu Ray release adds about 20 minutes back in so that the characters are fleshed out a bit because on leaving the cinema, the only thing I felt let down about was that the characters weren't given room to breathe. (and of course, the crap script).
Don't go into the cinema with reviews in your mind, just make your own mind up.