<Li> Irving Pichel as adult Huw Morgan (the unseen narrator) </Li> <Li> Minta Durfee (uncredited) </Li> <P> William Wyler, the original director, saw the screen test of McDowall and chose him for the part . Wyler was replaced by John Ford . Fox wanted to shoot the movie in Wales in Technicolor, but events in Europe during World War II made this impossible . Instead, Ford had the studio build an 80 - acre authentic replica of a Welsh mining town at Brent's Crags (subsequently Crags Country Club) in the Santa Monica Mountains near Malibu, California . </P> <P> The cast had only one Welsh actor, Rhys Williams, in a minor role . </P>

Where was how green was my valley filmed