The Blue Bird (Russian: Синяя птица, Sinyaya Ptitsa) is a 1970 Soviet animated feature film based upon the 1908 play by Maurice Maeterlinck.
While searching for food at the market, a boy saves a stray dog from a cruel salesman.
The rich man tempts the children with various delicacies to make them forget about the bluebird, but the fairy helps them escape.
The group learns that Puss has kidnapped the bluebird at the behest of his mistress, Night, so that she can sell it to the rich man.
Her plans are thwarted when Fire burns Night, Puss drowns in Water, and the boy steals the bird from the rich man.