Audrey Tautou was 19 in La vérité est un vilain défaut when she played the character 'Switchboard operator'.
That was over 27 years ago in 1997.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 47, and has starred in 40 movies in total, 38 of those since La vérité est un vilain défaut was released.
In La vérité est un vilain défaut, I think Audrey Tautou looks: