How many movies have Myfyr Isaac and Siw Hughes collaborated on?

They have worked on 1 movie together! Their first movie together was Steddfod! Steddfod! (1989) and was their highest rated movie together. They have not worked together since Steddfod! Steddfod! (1989).

Crew
Music
Role
Enfys
Role
Bethan
Role
Eleri Berwyn