What is a set of five movies called?

Could you please clarify what you mean by "a set of five movies"? Are you referring to a specific grouping or category of movies, such as a film franchise with five installments, or perhaps a curated collection of five films that share a common theme or genre? Without more context, it's difficult to provide a definitive answer, but typically, a set of five movies could be referred to as a "quintet" or a "quintology," although these terms are not widely used in common parlance. Could you provide some additional information to help me better understand your question?