Jonah Bobo was 5 in The Best Thief In The World when he played the character 'Sam Zaidman'.
That was over 20 years ago in 2004.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 27, and has starred in 9 movies in total, 8 of those since The Best Thief In The World was released.
In The Best Thief In The World, I think Jonah Bobo looks: