User blog comment:LoveWaffle/Ranking 2013's Superhero Movies/@comment-26711120-20140115181923/@comment-4652104-20140117170821

Well, I think Sabertooth and Creed actually are two different characters. There is no claim in the movies that they are the same person (there is no claim that they aren't either)

As for the age differences... It's not like comics are any good at this. Also, the ages are not stated anywhere explicitly, so maybe Scott just looks young. Some people do.

How did you arrive at Jean Grey being 15 years younger? I don't think it's actually stated anywhere in the movies that she was recruited later than Summers.