How many movies have Bedřich Wermuth and Jan W. Speerger collaborated on?

They have worked on 4 movies together! Their first movie together was Dokud máš maminku (1934) while their highest rated movie together was Děvčátko z venkova (1937). They have not worked together since Děvčátko z venkova (1937). They are most known for their comedy films together.