Technically very disappointing

Rating: 3/10 (8 July 2013)

The spaceship landing with full thrust without event breaking nor orbiting the planet: -1 star.
The spaceship landing on top of an archaeological site (not mentioning the luck they had after searching for it for 1 minute): -1 star.
The top earth-selection of the crew being a bunch of punks: -1 star.
Taking off the helmet on an unexplored planet outside of your galaxy: -1 star.
Toying with aliens: -1 star
Absolutely no weapons when exploring another galaxy: -1 star.
Nascarracing while driving to the unexplored dome on an unknown planet in an unknown galaxy: -1 star
Ah, come on Mr. Scott: whoever you hired to give you the basic technological hints has been extremely bad at it. We're not anymore in the 80's. Many people do watch NatGEO channel & Co. and do know about orbits and injection trajectories and biodiversity and I don't even want to think about the many archaeologists that ripped off their hair when you landed on the top of their site.
I liked all of the previous Alien movies. I bought the BluRay of this one just because of the scenes, which were really beautiful. I will watch the next movie & buy its bluray only if it can be digested only by creatures with a higher IQ than apes.