She has collaborated with her husband & filmmaking partner Tareque Masud to make numerous shorts, documentaries and features, many of which have been nationally/internationally awarded and shown around the world.
Since Tareque's untimely death in August 2011, Catherine has devoted herself to the archiving and preservation of his work, and the completion of their unfinished oeuvre.
Among many other films, she produced and co-wrote the acclaimed feature Matir Moyna (The Clay Bird), directed by Tareque, which won the International Critics' Prize at Cannes.
She edits all of her films and has taught numerous courses and workshops on various aspects of cinema at universities and training institutes.
More recently she has served as an adviser to the Bangladesh National Film Archives and the National Film and Television Institute (under development), and is a founding member of the South Asian Children's Cinema Forum, a regional body for the promotion of children's cinema.