The Big Space Travel is a Soviet 1975 children's science fiction film directed by Valentin Selivanov based on Sergey Mikhalkov's play The First Three, or the Year of 2001 ... (1970). The film premiered in the USSR on November 5, 1975.

Plot

Three teenagers — Sveta Ishenova from Bukhara, Sasha Ivanenko from Donetsk and Muscovite Fedya Druzhinin — win the All-Union Children's Space Competition and after completing the special training course, go to the first ever children's flight on the Astra spacecraft. During the flight the only adult on the ship, Captain Egor Kalinovsky, gets sick and is placed in the isolation ward.