Question: Which film has the director who is older than the other, Cop Car (Film) or Let Joy Reign Supreme? 
Sentence (from "Cop Car (film)"): Cop Car is a 2015 American thriller black comedy crime film directed by Jon Watts and co-written by Watts and Christopher Ford and starring Kevin Bacon, Shea Whigham, Camryn Manheim, James Freedson- Jackson and Hays Wellford.
Relevant evidence: Yes