His credits include Destroyer, The Invitation, Æon Flux, Clash of the Titans, R.I.P.D., and Ride Along.
[1] While in college at Brown University, he joined an improv comedy group, where he met his future writing partner Matt Manfredi.
[2] Their technique for joint screenwriting is to each write separate scenes and trade them to each other for further rewrites.
Hay has been married to filmmaker Karyn Kusama since 2006.
He co-wrote the screenplays for Æon Flux, The Invitation, and Destroyer, which were all directed by Kusama.