Alexis Knapp was 19 in Couples Retreat when she played the character 'San Diego Dance Academy'.
That was over 14 years ago in 2009.
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 16 movies in total, 15 of those since Couples Retreat was released.
In Couples Retreat, I think Alexis Knapp looks: