This tale is about young Ludvik (Robert Nespor) an erstwhile, budding scientist whose practical sense leads him to experiment before his common sense has figured out the results. Due to that unfortunate pattern, he variously floods the bathroom while working on displacement of volume and weight in water, he shatters the harvest pumpkins but not the law of gravity, and now he is eyeing the neighbor's rabbits for an electricity experiment. While the rabbits remain safe for awhile, Ludvik's parents wish he would follow in their more traditional footsteps and dedicate himself to music. Instead, Ludvik has learned that the proper mixture of a certain carbide and water can be explosive, and while he works on that technique, a friend tips off the physics teacher about these potentially disastrous plans.
Robert Nešpor
Mahulena Bočanová
Jiří Hálek
Lubor Tokoš
Oldřich Slavík
Zdena Hadrbolcová
Václav Babka
Zdeněk Blažek
Daniel Dítě
Roman Pravec
Jana Gazdíková
Filip Váp
Jolana Mikesková
Soňa Pavelková
Alice Hlobílková
Bohuslav Jirsák
Karel Semerád
Jana Tomečková
Marcela Chlupová
Roman Mecnarowski
Libuše Billová
Roman Kasala
Gabriela Mazalová
Gabriela Caisová
Miroslav Cais
Pavel Ševčík
Jaroslav Čepický
Martin Jakeš
Jitka Malůšková
Pavel Martinka
Michal Mlčoch
Marta Martináková
Rája Boudná
Irena Vitásková
Petr Jaroň
Věra Vaňharová
Marcela Majcová
Veronika Strojilová
Pavla Šťastná
Tomáš Hunák
Hynek Sedlák
Veronika Hanáková
Soňa Vaňharová
Jan Prokop
Eduard Fianta
Pavel Žabčík
Radka Suchomelová
Radka Krčmářová
Martina Málková
Hana Riedlová
Mirko Musil