Alicia Silverstone was 15 in The Crush when she played the character 'Adrian Forrester'.
That was over 30 years ago in 1993.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 46, and has starred in 48 movies in total, 46 of those since The Crush was released.
In The Crush, I think Alicia Silverstone looks: