Just watched this movie yesterday. My friend downloaded a leaked version of it from a torrent site. It was a regular digital copy, not recorded with a camcorder or anything. The only thing was that it was about 90% completed, meaning they hadn't put in all the CGI yet (the movie itself was complete). So some of the more CGI-heavy scenes had really basic graphics in place of how it will look when completed.
I didn't want to ruin it for myself, but I was visiting for the weekend so I had no choice! Anyway, I give it 3 stars out of 5. Not as good as the regular X-Men movies. And two weird things stuck out for me. Don't worry, these aren't really spoilers...you find them both out in the first 5 minutes:
Wolverine was born with claws. I was always under the impression that Stryker put them in Wolverine as shown in X2, but I guess in some versions of the comics, he was born with them. The other weird thing was that this movie had Wolverine and Sabretooth as brothers. WTF?