"Wanted" actually has the lowest budget of any of the comic book movies coming out this summer, from what I can see - even "Hellboy II" is clocking in at just over $70 million. Considering the glowing reviews, and the fact that the current projections over at BoxOfficeMojo have "Wanted" pulling down anywhere from $100-$150 mil, I'd say it's going to be a very big success.
Heck, it looks a lot better than "Hancock", and the budget for that one is reported to be near $200 million!