Originally Posted by Dasher10
Psylocke died in X3. That kind if implies that X3 either didn't happen or the events turned out differently. It's not so much a reboot as much as it is an AU.
Psylocke barely existed in X-Men 3.
There was an Asian chick with a purple streak in her hair that didn't have any of the same powers as Psylocke, and was never referred to as Psylocke, Betsy, Elizabeth, or Braddock.
Basically, her involvement in X-Men 3 was no more than Beast's involvement in X-Men 2, and using her in a later movie in a proper role is no more a contradiction than Beast in X-Men 3 and X-Men: First Class were to X-Men 2.