Pandorum
Sort of a re take of Sunshine/Event Horizon but good enough. All too possible with the flaws & subliminal desires inside human beings that rise to the top, when the self/faith/society imposed barriers are down.
Avatar
Never have I seen a "Merc" Army so well equipped, yet so tactically inept. The message is cheesy because of the willful & violent greed never & nowhere exhibited by evil corporations. Dances with Wolves/Last of the Mohicans in the future, except the natives win.
Surrogates
Fun. A glimpse at addiction/dependency and how fast it becomes a pandemic. Second thoughts about a first impression. Favorite line ... you can't undo what's been done. A warning that doing is a whole lot easier than undoing.
Terminator Salvation
The hydrobots were tough to believe, and the resistance tactics were scooped from "Westerns", dependent on lone heroes and Calvary charges. The struggle to survive was the disturbing part, but all too possible. Maybe even close.
I did enjoy them all. It was a good term for SciFi.
(I own all but Avatar, and will as soon as available)