Jenna Ortega was 9 in Iron Man 3 when she played the character 'Vice President's Daughter'.
That was over 10 years ago in 2013.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 21, and has starred in 21 movies in total, 18 of those since Iron Man 3 was released.
In Iron Man 3, I think Jenna Ortega looks: