Based on a play by Yevgeniy Shwartz, one of the best Russian playwrights of the 20th century, made by one of the best directors of the Soviet epoch with an unprecedented all-stars cast, this movie has instantly become a classic of Russian cinema and theatre alike. Critics may point out various flaws in it, still it is indispensable for anyone who is out to understand Russian culture a bit more, or just for anyone, I might add.