Company Credits
Production Companies
Distributors
- British Broadcasting Corporation (BBC) (1969) (UK) (TV) (original airing)
- A&E Home Video (1999) (USA) (DVD)
- A&E Home Video (1999) (USA) (VHS)
- BBC Video (UK) (DVD)
- BMG Video (UK) (DVD)
- DeVillier Donegan Enterprizes (USA) (all media)
- Independent Film Channel (IFC) (2011) (USA) (TV)
- Paramount Home Video (USA) (video) (laserdisc)
- Sony Pictures Entertainment (2008) (Japan) (DVD)
- Sony Pictures Home Entertainment (2007) (Germany) (DVD)
- Tokyo Channel 12 Television Ltd. (1976) (Japan) (TV)
- Universal Pictures Finland Oy (2007) (Finland) (DVD)
Other Companies
- British Broadcasting Corporation (BBC) (taping location)
