The British actor will play the lead in the heist dark comedy alongside Juliette Lewis and Craig Roberts that Stephen Fry and Phillippa Thomas are producing. 13 Films handles international sales at the EFM.
Kevin Thomas will direct from a screenplay by Thewlis that centres on an encounter between a young actor and a mortician and takes place against the backdrop of the film business. Zoe Kazan, Julia Garner, Ken Stott, and Shirley Henderson also star.
Croak is based on the short film Sunday Roast, which Thomas directed and was screened at the London Film Festival 2015.
Principal photography is scheduled for July. UTA is arranging financing for the film and handles US rights.
Croak is a Sprout Pictures, Thomas Thomas Films and The Development Partnership production.