Gillian Anderson was 38 in The X Files: I Want to Believe when she played the character 'Dana Scully'.
That was over 16 years ago in 2008.
Today she is 55, and has starred in 45 movies in total, 29 of those since The X Files: I Want to Believe was released.
In The X Files: I Want to Believe, I think Gillian Anderson looks: