Originally Posted by The Batman
As far as my personal timeline is concerned, no. I'd try and ignore Last Stand too, but that film has too many important events to ignore.
You can still acknowledge the events happen, and ignore the movie. You don't have to watch it. Just keep in mind what happened and let DOFP try and work it out. If your not happy with x3 chalk it up to a different timeline or something once DOFP drops lol. You could probably watch FC, x1,2, the wolverine and DOFP in a row and it make perfectly fine sense. That what I plan on doing lol.