Opera for a Hazelnut (1974)
An ant finds a hazelnut. She can't carry it alone and calls the other ants for help. The crow takes the hazelnuts to its tree. The ants are going to fight. They make a pyramid and reach the hazelnut. They transport it at the cost of many sacrifices to the anthill. The hazelnut breaks the anthill, and also breaks. A worm crawls out of it.
Director: Hristo Belchev
| Directing | Hristo Belchev | Director |
| Writing | Boris Aprilov | Writer |
| Visual Effects | Boyko Krastev | Animation |
| Sound | Zheni Parlapanova | Sound |
| Sound | Georgi Genkov | Music |
| Production | Gencho Simeonov | Producer |
