Incoming Resources
- ITV Studios, London, 2018
- Agatha Christie Limited, Acorn Productions, ITV Studios, Distributed exclusively by RLJ Entertainment, Inc., Place of publisher not identified, ©2010
- ITV Studios, ITV Global Entertainment Limited, Agatha Christie Limited a Chorion company, distributed exclusively by Acorn Media U.S., England, Silver Spring, MD, ©2011, ©1990
- Agatha Christie Limited, Acorn Productions, ITV Studios, Distributed exclusively by RLJ Entertainment, Inc., Place of publisher not identified, ©2013