Irène Jacob was 20 in Au Revoir les Enfants when she played the character 'Ms. Davenne, Piano Teacher'.
That was over 37 years ago in 1987.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 57, and has starred in 65 movies in total, 65 of those since Au Revoir les Enfants was released.
In Au Revoir les Enfants, I think Irène Jacob looks: