Hélène de Fougerolles was 19 in Leon's Husband when she played the character 'Geneviève'.
That was over 31 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 51, and has starred in 45 movies in total, 44 of those since Leon's Husband was released.
In Leon's Husband, I think Hélène de Fougerolles looks: