Wolverine was not as much a bad movie as it was not a good one. Very little character development. Gambit does not show up till almost 3/4 of the movie. The explanation of wolverine's name and memory loss was weak at best. And professor X appearance felt like an afterthought. The movie seemed great up until james and victor split the first time and then it was peaks and valleys from there. Bring back Bryan Singer. His 2 xmen movies have been the best, but the 2 since he left have been great in some parts and mediocre in others. And the "after the credits" ending was weak - at best.
Although marvel/x-men fans will probably be disappointed, there is enough action to satisfy people are NOT familiar with of the x-men lore.