1940 · Aleksandr Razumnyj · 70 min
Fifth-grade students, misbehaving during an air-raid drill, smash a cabinet in the physics lab. Lev Prokushev, one of the perpetrators, takes a microscope eyepiece, which is soon discovered in Arkady Zubov's school bag. Arkady categorically denies any involvement in the mischief but refuses to name the culprit.
Boris RungeLyova ProkushevLev MirskyVitya Surikov
Dagmara DeringerLidochka
Yekaterina DerevshchikovaKatyaK. GavrikovClassmateGrigoriy AronovAronov, classmate
Anatoliy IgnatyevSeryozha
Vera AltayskayaMarusya Ivanova, pioneer leader
Pyotr SavinVladimir Vishnyakov, teacher
Lev PotyomkinArkadiy's father
Nina RusinovaArkadiy's mother
Andrei TutyshkinSchool headmaster
Elena MaksimovaVitya Surikov's mother