How many movies have Ambrose Grayson and Godfrey Grayson collaborated on?

They have worked on 3 movies together! Their first movie together was Dick Barton Strikes Back (1949) while their highest rated movie together was Dr. Morelle: The Case of the Missing Heiress (1949). They have not worked together since The Fake (1953). They are most known for their crime films together.