Tina Majorino was 8 in When a Man Loves a Woman when she played the character 'Jessica Green'.
That was over 30 years ago in 1994.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 39, and has starred in 18 movies in total, 17 of those since When a Man Loves a Woman was released.
In When a Man Loves a Woman, I think Tina Majorino looks: