That was over 6 years ago in 2015.
Today he is 15, and has starred in 17 movies in total, 9 since Room was released.
In Room, I think Jacob Tremblay looks:
Room scores 8.1 out of 10 on The Movie Database.
Jacob Tremblay's first acting role was as 'Blue Winslow' in The Smurfs 2, released in 2013 when he was 6.