I actually have a workprint of this. To be honest it's nothing spectacular. It's basically the movie with a few fx shots missing (just a place marker saying something like "fx not finished" in their place), and the deleted scenes from the dvd still in there. It's pretty good quality, but as I say not really worth it. I got it months before it was released and loved it and couldn't wait to see the finished fx. There weren't too many missing, just things like a couple of bug shots, some CGI space ship stuff and weirdly the shot of the bug sucking the brains out of the guys head. If you have the DVD and reinsert the deleted scenes, then that's pretty much the workprint. Not sure if it's the same one you have though as it's the only one I seen. Of course if there's another one around with more stuff than in this then I'd definitely want to see it.