Skyler Gisondo was 8 in Jam when he played the character 'Robert'.
That was over 18 years ago in 2006.
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 28 movies in total, 27 of those since Jam was released.
In Jam, I think Skyler Gisondo looks: