Overview
Istanbul is a 1957 American CinemaScope film noir crime film directed by Joseph Pevney, and starring Errol Flynn and Cornell Borchers. It is a remake of the film Singapore, with the location of the action moved to Turkey. The plot involves an American pilot who becomes mixed up with various criminal activities in Istanbul.
Plot
For the first time in five years, pilot Jim Brennan (Errol Flynn) flies to Istanbul, Turkey, but is immediately brought to the office of customs Inspector R. P. Nural (John Bentley) who suspects him of diamond smuggling. Jim goes to the hotel where he stayed previously, but his old room has American couple Charlie (Leif Erickson) and Marge Boyle (Peggy Knudsen) staying there.
At the café, Jim sits at his regular table and recalls the last time he was there, sharing a drink with German tourist Stephanie Bauer (Cornell Borchers), a beauty with whom he falls in love. She knows he has to fly for a living, and encourages him to accept a quick job flying businessmen to Cairo. On his return, an old friend, merchant Aziz Rakim (Vladimir Sokoloff) offers Jim a bracelet to give to Stephanie but a hidden compartment contains diamonds, which Jim stashes in his ceiling fan.
When he proposes to Stephanie, he also gives her the bracelet. She accepts his proposal, but back at his room, the couple encounter Paul Renkov (Werner Klemperer) who is looking for the diamonds. The next night, Paul follows Jim and with several henchmen, beat him up. Mr. Darius (Martin Benson), their leader, demands the diamonds. The police find Jim, and at headquarters, Nural tells him that Aziz was murdered likely due to his role in a shipment of stolen diamonds smuggled in a bracelet. Jim denies involvement in the theft and later asks Stephanie to come with him that night to Paris.
From Wikipedia (CC BY-SA 4.0).