It's an alternate time line we haven't seen before in previous X-Men films...or it's such a massive jump into the future, you've no idea what all happened in between, and that gap leaves you feeling empty despite the excellent fight scenes... backstory is essential! I can't feel for the character without knowing more... But, personally, I've never been a huge fan of the Wolverine anthology...I prefer the X-Men films with all the cast - Apocalypse was amazing! This film just drags and is so slow...I didn't even shed a tear at the end.