That was over 14 years ago in 2007.
Today she is 27, and has starred in 26 movies in total, 21 since Death Defying Acts was released.
In Death Defying Acts, I think Saoirse Ronan looks:
Death Defying Acts scores 5.6 out of 10 on The Movie Database.
Saoirse Ronan's first acting role was as 'Briony Tallis (Age 13)' in Atonement, released in 2007 when she was 13.