I loved the movie. Was also fun to see the little spin they did on the current ufology stuff the History channel has been airing (ancient aliens and all of that.) And yes, that medical scene was freaky. Very well done!
I think for me the best aspect of the movie was how it all looked. The alien planet, the effects, etc. My only complaint is the bowl-helmets. Reminded me of old sci-fi movies from the black and white era.