They took it off air because short sighted network executives realized it was cheaper to program with knockoffs of good reality shows like Super Nanny and Extreme Makeover. Which came back to bite them, as they're being sued for it. I bet they wish they would have kept it on air, now.
Probably the best Sci-Fi show on TV in the past four or five years; certainly the best since Babylon 5. Only the new Battlestar Galactica comes close to its quality. I had the DVD set with me when I travelled to Sweden last month for work; the guys in the office there had never seen the show, and now they are addicted too.
Maybe I was just reading something into it, but it seemed to have a little right of center subtext in it.
They also got great ratings. I was really surprised to see a show like that on network TV. It was very well done all they way around. I have never been statified by the explainations for the cancellation.
It was certainly better than some of the stuff made for the SciFi channel.
The movie looks like they kept the exact same feel, though one cannot tell much from a trailer/