He was never really an x-men until AFTER the WEAPONX project where that striker dude pretty much beat the shit out of him, fucked up his face and gave him wolverines healing abbilities.
The origins movie fucked it over by giving him a shitload of powers...which is gay as fuck...
and
The origins movie was kinda different from what you saw in the 2nd movie. Which made me a bit mad....
In my opinion. Either rip it or wait till it comes out on DVD till you see it.