Cast & crew
Opera for a Hazelnut (1974)
Directed by Hristo Belchev Written by Boris Aprilov
Crew
| Boyko Krastev | Animation |
| Gencho Simeonov | Producer |
| Hristo Belchev | Director |
| Zheni Parlapanova | Sound |
| Zheni Parlapanova | Sound |
| Georgi Genkov | Music |
| Georgi Genkov | Music |
| Boris Aprilov | Writer |
| Hristo Belchev | Director |
| Boyko Krastev | Animation |
| Boris Aprilov | Writer |
| Gencho Simeonov | Producer |
| Zheni Parlapanova | Sound |
| Boyko Krastev | Animation |
| Hristo Belchev | Director |
| Boris Aprilov | Writer |
| Gencho Simeonov | Producer |
| Georgi Genkov | Music |