That was over 22 years ago in 1999.
Today she is 48, and has starred in 37 movies in total, 22 since The Thirteenth Floor was released.
In The Thirteenth Floor, I think Gretchen Mol looks:
The Thirteenth Floor scores 6.8 out of 10 on The Movie Database.
Gretchen Mol's first acting role was as 'Girl #12' in Girl 6, released in 1996 when she was 23.