Julie Delpy was 7 in Civil Wars in France when she played the character '(segment "La semaine sanglante")'.
That was over 46 years ago in 1978.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 54, and has starred in 74 movies in total, 71 of those since Civil Wars in France was released.
In Civil Wars in France, I think Julie Delpy looks: