Famke Janssen was 40 in X-Men: The Last Stand when she played the character 'Jean Grey / Dark Phoenix'.
That was over 18 years ago in 2006.
Today she is 59, and has starred in 69 movies in total, 35 of those since X-Men: The Last Stand was released.
In X-Men: The Last Stand, I think Famke Janssen looks: