How many movies have Kathy Hilton and Maria Arnold acted in together?

They have worked on 10 movies together! Their first movie together was The Harem Bunch (1969) while their highest rated movie together was The Amorous Adventures of Don Quixote and Sancho Panza (1976). They have not worked together since Bucky's '70s Triple XXX Movie House Trailers Volume 2 (1994).