How many movies have Jan W. Speerger and Vilém Prokop Mlejnek collaborated on?

They have worked on 5 movies together! Their first movie together was Jiný vzduch (1939) while their highest rated movie together was The Respectable Ladies of Pardubice (1944). They have not worked together since Rodinné trampoty oficiála Tříšky (1949). They are most known for their history films together.