That was over 20 years ago in 2001.
Today she is 76, and has starred in 115 movies in total, 52 since Gosford Park was released.
In Gosford Park, I think Helen Mirren looks:
Gosford Park scores 6.9 out of 10 on The Movie Database.
Helen Mirren's first acting role was as 'Advert Woman' in Herostratus, released in 1967 when she was 21.