ACTORS
- Irene Pepperberg
Self - Angela Stöger
Self - Jack Kassewitz
Self - Erich Jarvis
Self - Frans de Waal
Self - Sarah Jeannin
Self - Ana Hocevar
Self - Tecumseh Fitch
Self - Sonja Vernes
Self - Dick Byrne
Self - John Kroeker
Self - Diana Reiss
Self - Ludwig Huber
Self
DIRECTOR
WRITER
- ...(commentary written by)
- ...(commentary written by)
- ...(original idea)