HORRIBLE. Implausible. No atmosphere. No horror. No sense.

Rating: 4/10 (19 June 2012)

I gave a very generous 4/10, only because it pays some homage to Alien series.
The movie is a mishmash of "Contact" (ie religion/belief/first-contact) and "The Thing" and "Blade Runner/AI". First 1 minute of movie reveals the robot, David.
There is no suspense. There is no atmosphere. If you like horror flicks, you WILL be disappointed.
There is no SCI-FI. There is no cool tech. Or moral dilemmas for that matter. Those who grew up with Jurassic Park (technology lets biology run amock), or Star Trek (how to deal with first contact), will be very disappointed.
What this waste of a movie does have is an incompetent crew and plot with more holes than swiss cheese, some scare gag aliens killing people at random times, and of course those huge awe inspiring shots of a giant head / space ship.
If your idea of a good time is staring at the big head poster for this movie, with your buddy jump-scaring you every now and then, then you're in for a treat. However, if you're looking for at least B-Movie logic and some logical plot progression and character development, then like me and 99% of audience, you'll be warning others of seeing this.
There is a very good reason 2nd week sales are down over 60%. Stay away = it sucks.