What Bogart and Bergman would always have in this 1942 film? (5)
I believe the answer is:
paris
(Other definitions for paris that I've seen before include "Capital of France" , "Prince who abducted Helen, starting a long war (see 8)" , "'I Love - - ', song by 14" , "Abductor of Helen" , "He abducted Helen of Troy" .)