How many movies have Hannah Duke and Harold Ramis collaborated on?

They have worked on 1 movie together! Their first movie together was Ghostbusters: Afterlife (2021) and was their highest rated movie together. They have not worked together since Ghostbusters: Afterlife (2021).

Role
Reseda
Crew
Original Film Writer
Role
Dr. Egon Spengler (archive footage) (uncredited)