Laurie Holden was 18 in Physical Evidence when she played the character 'Matt's Girl'.
That was over 35 years ago in 1989.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 54, and has starred in 25 movies in total, 24 of those since Physical Evidence was released.
In Physical Evidence, I think Laurie Holden looks: