How many movies have Henk van der Linden and Richard Vroomen collaborated on?

They have worked on 2 movies together! Their first movie together was George & Jimmy and the Sword of Krijn (1977) while their highest rated movie together was Billie Turf, het dikste studentje ter wereld (1978). They have not worked together since Billie Turf, het dikste studentje ter wereld (1978).