• 2 Compulsive gambling
• 2 Environmentalists
• 2 Gambling
• 2 Gould, Glenn
• 2 Pianists
• 2 Suzuki, David, 1936-
• 2 Teenage gamblers
• 1 Composers
• 1 Effect of human beings on
• 1 Extinction (Biology)
• 1 Geneticists
• 1 Music
• 1 Nature
• 1 Nature conservation
• 1 Risk-taking (Psychology) in adolescence
• 1 Television personalities
• 1 Weinzweig, John, 1913-2006
• 1 Weinzweig, John, 1913-2006, interviewee

• 3 Bullfrog Films
• 3 National Film Board of Canada
• 2 EyeSteelFilm (Firm)
• 2 Jackson, Stanley, 1914-1981
• 2 Koenig, Wolf
• 2 Kroitor, Roman
• 2 Lynch, Tamara
• 2 Suzuki, David, 1936-
• 2 Turek, Laura
• 1 Bochner, Sally
• 1 Bochner, Sally (Film producer)
• 1 Chan, Meiyen
• 1 Conrad, Jim (Narrator)
• 1 Davis, Peter, 1937-
• 1 Docuseek2 (Firm)
• 1 E1 Entertainment (Firm)
• 1 Fanlight Productions
• 1 Fichman, Niv
• 1 Giancola, Dino
• 1 Gunnarsson, Sturla
• 1 Harvey McKinnon Productions
• 1 Lumb, Janet
• 1 McKinnon, Harvey
• 1 National Film Board of Canada. Ontario Centre

• 7 English

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