Riley Keough was 14 in Elvis by the Presleys when she played the character 'Herself'.
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 34, and has starred in 36 movies in total, 34 of those since Elvis by the Presleys was released.
In Elvis by the Presleys, I think Riley Keough looks: