There are a lot of mediocre sci-fi films these days, and this is one of them. It's not awful but there's not much to it. They clearly didn't invest too heavily in a writing staff. It's fairly predictable, even if you aren't a big sci-fi fan. The film just ambles its way along with no real revelations or insight. The only "interesting" piece about it is the special effect used for one of the methods of killing people.
