I would say White Wolf takes a gamble either way. I can't imaging they make a terrible profit from this stuff (not a fan, so I'm sure someone will prove me wrong). So they think why not slap a lawsuit against one of the biggest entertainment companies on earth.
Pertaining to the movie: I think it looks extremely badass. There is something about all the stunts I have seen in the previews that look natural. I know they are using wires and whatever tricks but the way they are moving just looks real. Two examples: the scene where Kate Beckinsale drops from the tower, and the scene where she is in a sewer jumping from the background to the foreground. Just the movement looks amazing to me. I'm very nitpicky. I loved Crouching Tiger but hated the obvious use of wires. It's like Lee didn't TRY to hide that fact. I'm hoping the rest of Underworld looks as great as those two small scenes. I also saw a little behind the scene clip where they had a huge conveyor belt type thing running and someone was chasing a car, made it look like he was running 40mph. Everything I have seen so far just looks amazing.
"The only downside to being better than everyone else is that people tend to assume you're pretentious."