Distributia
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Steven MackintoshHimself - Narrator (voice)
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Harrison SchmittHimself
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Dennis HopeHimself
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Larry ClarkHimself (as Dr Larry Clark)
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Nikolai SevastiyanovHimself
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John ConnollyHimself - Rocket Engineer, NASA
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Jerry KulcinskiHimself (as Prof Jerry Kulcinski)
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David WardHimself (as Dr David Ward)