King Stag (Russian: Король-олень, romanized: Korol-olen) is a feature film directed by Pavel Arsenov[1] based on the musical play of the same name by Carlo Gozzi, and shot at the Gorky Film Studio in 1969.

There is a problem: how to find out which of the contenders for his loves is genuine and which is simply eyeing the royal throne.

The wizard Durandarte gives the king a figure of a clown who laughs if someone utters an untruth.

Tartaglia hatches intrigues and in every possible way interferes with his daughter Clarice marrying young, handsome chamberlain Leandra, Angela's brother, expecting to give the hand of his daughter to the king.

Tartaglia is, however, unrelenting: while hunting, he learns from a friend the spell of Durandarte and swaps bodies with him.