Brie Larson has been added to the cast of Joseph Gordon -Levitt’s directorial debut “Don Jon’s Addiction”.

Larson has starred in “21 Jump Street”, (and I loved her in “United States of Tara”) – and she’ll play the sister to Gordon-Levitt’s title character, who’s a porn-addicted selfish asshole.

According to Variety, he’s a modern day Don Juan character who tries to become a better person after meeting an older widow (Julianne Moore), who recently lost her husband.

Also starring in the film are Scarley Johannson, Rob Brown and Tony Danza – who plays Larson/Gordon-Levitt’s dad.