Cullen, whose breakthrough performance came on 2011 UK hit Weekend, also scripted the movie. Producers are Maggie Monteith (Out Of Blue) for Dignity Film Finance and Talland Films, and Jamie Adams (Black Mountain Poets) and Richard Ellis (Black Mountain Poets) for Two Flowers And A King. Chris Reed of Freebie Films is executive producer. UK-based AMP International is handling world sales.
Writer-director-actor Duplass is also well known for his feature collaborations with brother Mark Duplass. The two have made films including Cyrus and Jeff, Who Lives At Home. Maslany most recently starred with Nicole Kidman in feature Destroyer.
Dignity and Two Flowers are also behind upcoming Jennifer Grey and Suki Waterhouse pic Bittersweet Symphony.