Michelle Williams was 12 in Lassie when she played the character 'April Porter'.
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 43, and has starred in 53 movies in total, 50 of those since Lassie was released.
In Lassie, I think Michelle Williams looks: