To borrow a quote from Ripley:"God damn it, that's not all! Because if one of those things gets down here then that will be all! Then all this - this bullshit that you think is so important, you can just kiss all that goodbye!"Watching the trailer certainly makes me think that ;)
I saw it a few weeks ago at the "Festival de l'Etrange" and thought it was really good. A couple minor points of contention, but otherwise a strong and timely movie.