Gwendoline Christie was 29 in Theatreland when she played the character 'Herself'.
That was over 15 years ago in 2009.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 45, and has starred in 20 movies in total, 19 of those since Theatreland was released.
In Theatreland, I think Gwendoline Christie looks: