They're Calling, Open the Door (Russian: Звонят, откройте дверь, romanized: Zvonyat, otkroyte dver) is a Soviet feature film of 1965 directed by Alexander Mitta, the debut of the twelve-year-old Elena Proklova in the cinema.
Plot
A fifth-grade student, Tanya (Elena Proklova), is in love with the pioneer leader Petya (Sergey Nikonenko), who is teased by one of her classmates. Tanya's father is a geologist, and her mother left for a while to see her husband; Tanya lives alone under the supervision of a neighbor in a communal apartment. To please the pioneer leader, she takes part in the search for an interesting person, one of the first soviet pioneers.