For everybody who thinks all movies are doomed to ruin the comic books they are based off of, I disagree:
Spiderman 1
Spiderman 2
XMen 1
XMen 2
The Watchmen
Ironman
The Hulk (most recent one)
Batman Begins
The Dark Knight

They do a great job of these adaptations sometimes, and I do not get mad at them for taking some liberties with the canon behind it, but this was far too much.

Also, Wolverine did get shot in the head in the 2nd movie, but he has an adamantium skull so it didnt do anything but break skin, in this movie wolverine gets shot repeatedly without the adamantium AND after he has an adamantium skeleton he gets shot through the head with an adamantium bullet and only suffers amnesia. Anybody can tell you, that ruins any level of suspense a movie can have.

Also in one scene, after having given wolverine an adamantium skelleton and he escapes, Stryker tells one of the X-Force members to kill wolverine, knowing full well he just made him invincible, he sends Agent Zero to go kill wolverine with regular bullets and even says "Cut his head off" as a solution to killing him, even though he knows full well that he JUST personally gave wolverine an industructible skelliton, then in a later scene the same guy, Stryker has adamantium bullets made for himself, however Agent Zero is a marksman and if he hadnt been sent on a suicide mission and given adamantium bullets in an earlier scene it would have made a million times more sense, the movie had plot holes so large it wasnt even funny.