Director: Otakar Vávra
Cinematography: Václav Hanus
Art Direction: Oldrich Okác / Jirí Trnka
Matte paintings are uncredited but I´m sure all the trickery ( mattes, miniatures and animation) was under supervision of Jirí Trnka. He could even execute the paintings himself , as he was, among his other artistic skills, a great illustrator.
On the last capture the miniature ships moved across the river. The city behind was probably a background painting.