Birgitte Hjort Sørensen was 23 in Three Summers when she played the character 'Nanna'.
That was over 17 years ago in 2006.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 41, and has starred in 16 movies in total, 15 of those since Three Summers was released.
In Three Summers, I think Birgitte Hjort Sørensen looks: