That was over 15 years ago in 2006.
Today he is 24, and has starred in 18 movies in total, 13 since After Thomas was released.
In After Thomas, I think Asa Butterfield looks:
After Thomas scores 3 out of 10 on The Movie Database.
Asa Butterfield's first acting role was as 'Andrew' in After Thomas, released in 2006 when he was 9.