That was over 6 years ago in 2015.
Today she is 31, and has starred in 30 movies in total, 10 since Black Mass was released.
In Black Mass, I think Dakota Johnson looks:
Black Mass scores 6.3 out of 10 on The Movie Database.
Dakota Johnson's first acting role was as 'Sondra' in Crazy in Alabama, released in 1999 when she was 10.