See "So Violent, and Yet So Blhttp://www.blogger.com/post-create.g?blogID=34955617oodless," By John Anderson, Special to The Washington Post, Friday, May 1, 2009.
Wolverine's history is so convuluted now that it's impenetrable to reason, as when A.O. Scott in "I, Mutant, Red in Face and Claw," says, "“X-Men Origins: Wolverine” will most likely manage to cash in on the popularity of the earlier episodes, but it is the latest evidence that the superhero movie is suffering from serious imaginative fatigue. A twist at the end that gives poor Wolverine a bad case of amnesia — turning him into a kind of Jason Bourne with sideburns — is a virtual admission that nothing terribly interesting has been learned about the character. He forgets his origins before the movie devoted to their exposition is even over. It won’t take you much longer." He's actually got it backwards by blaming the movie - in the comic books, Wolverine had amnesia which had become necessary as various writers added parasitical bits to a fairly basic origin story that couldn't support them.