Boyana Film image Bau-Bum April 28, 1989 Theatrical Boyana Film English title: Bum-Bum StudioBoyana Film, Natfiz DistributorNational Film Center Credits Directing Director Lachezar Ivanov Writing Writer Andrey Slabakov Animation Animator Lachezar Ivanov ← Am-Am Shou Magareto, Koeto Izpi Lunata →
