Sydney Sweeney was 11 in ZMD: Zombies of Mass Destruction when she played the character 'Lisa'.
That was over 14 years ago in 2010.
This was her first recorded movie acting credit (although may not technically be her first actual acting role).
Today she is 26, and has starred in 32 movies in total, 25 of those since ZMD: Zombies of Mass Destruction was released.
In ZMD: Zombies of Mass Destruction, I think Sydney Sweeney looks: