Michelle Pfeiffer was 20 in The Solitary Man when she played the character 'Tricia'.
That was over 45 years ago in 1979.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 66, and has starred in 69 movies in total, 66 of those since The Solitary Man was released.
In The Solitary Man, I think Michelle Pfeiffer looks: