Company Credits
Production Companies
- ITV Studios (A Co-Production of) (as itv STUDIOS)
- WGBH (A Co-Production of) (as WGBH BOSTON)
- Agatha Christie (in association with) (as Agatha Christie Ltd {a Chorion Company)
- Chorion (uncredited)
Distributors
- Elephant Films (2011) (France) (video)
- ITV Studios (2010) (World-wide) (all media)
- NHK (2012) (Japan) (TV)
Other Companies
- Coach House Studios (Avid Unity suite) (uncredited)
- Media Services (stationery supplier) (uncredited)
