Catherine Keener was 26 in About Last Night... when she played the character 'Cocktail Waitress'.
That was over 38 years ago in 1986.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 65, and has starred in 77 movies in total, 76 of those since About Last Night... was released.
In About Last Night..., I think Catherine Keener looks: