ดูวิดีโอฟรี From Moscow To Cassiopeia (Moskva-Kassiopeya)

The best Soviet fantastic film for children.
The second part of a film is called "Teenagers in the Universe" (Otroki vo vselennoj)

Director: Richard Viktorov
Cast: Misha Ershov, Sasha Grigoriev, Volodya Savin, Volodya Basov, Olya Bityukova, Nadya Ovcharova, Ira Popova, Dima Ledogorov, Innokenti Smoktunovsky, Lev Durov, Vasili Merkuriev, Nataliya Fateeva, Igor Ledogorov, Raisa Ryazanova.