How many movies have Greydon Clark and John Avery collaborated on?
They have worked on 1 movie together! Their first movie together was Wacko (1982) and was their highest rated movie together. They have not worked together since Wacko (1982).
They have worked on 1 movie together! Their first movie together was Wacko (1982) and was their highest rated movie together. They have not worked together since Wacko (1982).
