How many movies have Derek Nimmo and John D. Merriman collaborated on?

They have worked on 2 movies together! Their first movie together was Go to Blazes (1962) while their highest rated movie together was A Hard Day's Night (1964). They have not worked together since A Hard Day's Night (1964).

Role
Leslie Jackson (uncredited)
Crew
Assistant Director
Role
Fish Fancier
Crew
Production Manager