How many movies have Bogumil Atanasov and Nikolai Tsankov acted in together?

They have worked on 3 movies together! Their first movie together was Boris I - Part 2 - Word For Letters (1985) while their highest rated movie together was The Thirteenth Bride of the Prince (1987). They have not worked together since The Thirteenth Bride of the Prince (1987). They are most known for their history films together.