How many movies have Michael Josephs and Peter Robb-King collaborated on?

They have worked on 2 movies together! Their first movie together was Force 10 from Navarone (1978) while their highest rated movie together was Return of the Jedi (1983). They have not worked together since Return of the Jedi (1983).

Role
Janus Greejatus - Emperor Palpatine's Advisor (uncredited)
Crew
Makeup Artist