Elizabeth Marvel, David Rasche and Denis O'Hare have been added to the cast of Swallow, the indie psychological thriller starring Haley Bennett. Austin Stowell is also aboard the pic, which serves as the debut feature film of writer-director Carlo Mirabella-Davis. Shooting is now underway, with CAA and UTA handling domestic rights and Charades repping international. Bennett plays a newly pregnant woman who develops the compulsion to consume dangerous objects.