Aly Michalka was 14 in Now You See It... when she played the character 'Allyson Miller'.
That was over 18 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 33, and has starred in 15 movies in total, 13 of those since Now You See It... was released.
In Now You See It..., I think Aly Michalka looks: