How many movies have Charles King and George H. Plympton collaborated on?

They have worked on 28 movies together! Their first movie together was The Roaring West (1935) while their highest rated movie together was The Oregon Trail (1939). They have not worked together since The Phantom Creeps (1949). They are most known for their western films together.

Role
Sir Edgar Bullard (uncredited)
Crew
Screenplay