Budimir Metalnikov

Dr. Martin Ivens, a well-known Western specialist, has dedicated his life to discovering the "secret" of the aging process. His scientific quest is rendered existential when he is saved from a fiery plane crash by an expedition of enlightened aliens from Orion.

Eternity is an organization and a place which exists outside of time. It is staffed by humans called "Eternals" capable of traveling and entering the conventional temporal world at almost any point of their choice, apart from the far future which they cannot enter. Andrew Harlan, an expert in executing Reality Changes, realizes that he is part of a paradoxical scheme to secure the creation of Eternity by sending a young Eternal back in time with the mathematical knowledge to make it possible.

The prosecutor must sign the arrest order for a childhood friend. He's accused of helping the police before the communist coup d'état of 1944, but without solid proof.

The film illustrates how Tchaikovsky's life and work were virtually one in the same. (allmovie.com)

A Home for Tanya is a 1959 Soviet drama film directed by Lev Kulidzhanov. It competed for the Palme d'Or at the 1959 Cannes Film Festival. (Wikipedia)