How many movies have Alfred Hitchcock and Barbara Howitt collaborated on?

They have worked on 1 movie together! Their first movie together was The Man Who Knew Too Much (1956) and was their highest rated movie together. They have not worked together since The Man Who Knew Too Much (1956).

Crew
Director
Role
Self - Soloist
Crew
Producer
Role
Man in Marrakesh Marketplace (uncredited)