X-Men Origins: Wolverine: $87,000,000~
The Dark Knight: $158,411,483
Batman Begins: $48,745,440
Spiderman: $114,844,116
Spiderman 2: $88,156,227
Spiderman 3: $151,116,516
Iron Man: $98,618,668
X-men: $54,471,475
X2: X-Men United: $85,558,731
X-men: The Last Stand: $102,750,665
Hulk: $62,128,420
The Incredible Hulk: $55,414,050
Superman Returns: $52,535,096
Watchmen: $55,214,334
300: $70,885,301
Obviously I didn't include everything, but this just gives you an idea of how the Wolverine film compared with others of the same genre.
In comparison to the other X-Films, X3 had the best performance in it's opening weekend, but it quickly went downhill. I believe that Wolverine has more staying power and will surpass the box office numbers of X-men: The Last Stand.
I think we all agree that The Dark Knight will remain on top for quite some time.
*Box Office numbers are courtesy of boxofficemojo.com