The Blue Bird Russian , Sinyaya Ptitsa is a 1970 Soviet animated feature film based upon the play by Maurice Maeterlinck. It was directed by Vasily Livanov and made at the Soyuzmultfilm studio. It uses a mix of traditional and cutout animation.
Having risen at night by an attic, it meets long ago dead the grandmother and the grandfather who explain to him that in the Bluebird of happiness the happiness for all is concluded, and therefore she has to be free. It isnt possible to let out a bird because the cage with it was stolen by suspicious Cat.Together with the Dog children go to look for the Bluebird of happiness and meet the Rich man who as it becomes clear, also looks for the Bluebird of happiness to feed with her the World War III which is grown up by it and to win the world. The rich man tries to feed children with various delicacies that they forgot about the Bluebird of happiness, but the Fairy doesnt allow them to be tempted and gives in the help of eternal companions of the person Fire, Water and Bread. It appears, Cat stole the Bluebird of happiness on the instructions of the hostess Night who intends to sell it to the Rich man. Then Fire burns Night, Cat sinks in Water, and the Boy abducts a bird at the Rich man, but during a pursuit breaks together with it from a tower of hours. ........
Source: Wikipedia