Ellen DeGeneres was 27 in The Young Comedians All-Star Reunion when she played an uncredited character.
That was over 38 years ago in 1986.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 66, and has starred in 39 movies in total, 39 of those since The Young Comedians All-Star Reunion was released.
In The Young Comedians All-Star Reunion, I think Ellen DeGeneres looks: