That was over 16 years ago in 2006.
Today he is 83, and has starred in 97 movies in total, 35 since X-Men: The Last Stand was released.
In X-Men: The Last Stand, I think Ian McKellen looks:
X-Men: The Last Stand scores 6.3 out of 10 on The Movie Database.
Ian McKellen's first acting role was as 'Roger' in Alfred the Great, released in 1969 when he was 30.