Claim: Incident in Shanghai was directed by John Paddy Carstairs based on an original story by John Paddy Carstairs.
Evidence: John Paddy Carstairs an original story by John Paddy Carstairs 
Incident in Shanghai is a 1938 British drama film directed by John Paddy Carstairs and starring Margaret Vyner, Patrick Barr, Ralph Roberts and Derek Gorst. an original story by John Paddy Carstairs