During a summer holiday, two boys discover an anti-gravity cannon in an old attic.

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Main Cast: Mario Mirković, Jiří Guryča, Nina Petrović, Rene Bitorajac, Špiro Guberina, Boris Dvornik, Petar Jelaska, Jan Kanyza, Miloš Kopecký, Mia Oremović

Director: Vladimir Tadej

Writers: Jaroslav Petřík, Vladimir Tadej

Editors: Antonín Štrojsa, Žana Gerova

Cinematographers: Jiří Kolín, Branko Knez

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