Forbidden (1949)

Set on Blackpool’s Golden Mile, Jim (Douglass Montgomery), a once promising scientist, sets up in business as a patent medicine man selling hair tonic at the fair with his ex-army colleague Dan (Ronald Shiner). Following a fight with local hoods over pitch spaces, Jim falls for Jane (Hazel Court), the girl on a nearby candy floss stall. The two begin dating but Jim fails to mention he is already married.