That was over 6 years ago in 2015.
Today she is 31, and has starred in 36 movies in total, 8 since Room was released.
In Room, I think Brie Larson looks:
Room scores 8.1 out of 10 on The Movie Database.
Brie Larson's first acting role was as 'Courtney Enders' in Right on Track, released in 2003 when she was 13.