Elizabeth Debicki was 20 in A Few Best Men when she played the character 'Maureen'.
That was over 13 years ago in 2011.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 33, and has starred in 22 movies in total, 20 of those since A Few Best Men was released.
In A Few Best Men, I think Elizabeth Debicki looks: