There's a review for this over at highdefdigest (pretty much the only 'pro' review I've seen so far) and the reviewer, Nate Boss, basically rips it a new one, calling out the disjointed story, weak casting and uneven visuals and sound. I guess it wasn't the Vudu feed after all.
Here's the link, wherein he calls it possibly the worst DC comics adaptation ever. Guess he's never seen Superman IV, Batman & Robin, Steel and Catwoman. Still, ouch!.http://bluray.highdefdigest.com/3348/jonahhex.html