Jessica Lowndes was 15 in Saving Milly when she played the character 'Andrea Kondracke (Age 15)'.
That was over 19 years ago in 2005.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 35, and has starred in 29 movies in total, 28 of those since Saving Milly was released.
In Saving Milly, I think Jessica Lowndes looks: