 The films success led to plans for a sequel, which was to be called  Brazzaville. Ingrid Bergman (I) (qv) was not available, so  Geraldine Fitzgerald (I) (qv) was considered for Ilsa before the  project was killed. It was not until the late 1990s and Michael  Walshs novel "As Time Goes By" that a true sequel ever came to  pass.