Overview
Forest Song is a 1963 Soviet fantasy film directed by Viktor Ivchenko.
Plot
There is a guy and a girl who are reading the book "The Forest Song" by Lesya Ukrainka on the river bank. Reading transfers them to Polesia where the action of the drama takes place.
The mythological characters and people meet in the magic wood. The music of the nozzle which is played by a country guy Lukash awakens the forest girl Mavka from a dream. They fall in love. Mavka leaves the forest kingdom and goes to people because of Lukash. Lukash's mother treats Mavka with hostility. She insists on Lukash’s marriage the widow Kilin and it causes a very intolerable pain to Mavka. But she is taken away "By the one who sits in the rock ". Leshy damns Lukash for his unfaithfulness and turns him into a wolf.
After Lukash’s uncle death he flounces in the wood, and his shout returns Mavka from the drowsiness. She forgives Lukash, and that becomes a man again.
From Wikipedia (CC BY-SA 4.0).