Elizabeth Perkins was 24 in About Last Night... when she played the character 'Joan'.
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 63, and has starred in 40 movies in total, 39 of those since About Last Night... was released.
In About Last Night..., I think Elizabeth Perkins looks: