It's now part of Hollywood lore how George Raft immeasurably aided the career of Humphrey Bogart by turning down High Sierra, The Maltese Falcon and Casablanca. After the last one I guess Raft thought he'd go for a Casablanca type story and the film of Eric Ambler's Background to Danger seemed like a good bet. If working with Sidney Greenstreet and Peter Lorre worked for Bogey...........
Background to Danger only confirmed Raft's wisdom about trying to stick to what he could handle. Had he been in Casablanca, the film today would be a routine action adventure picture not the cinema classic it is.
According to a biography of Raft, Peter Lorre was stealing scenes all over the place and blew cigarette smoke in Raft's face causing him to lose concentration. After repeated requests to stop doing it, Raft clocked Lorre on the chin and that settled the problems they had. On the set that is, on screen Raft registers no presence at all with his fabled co-stars.
Raft is an American agent, Greenstreet a Nazi, and Brenda Marshall and Lorre are a brother and sister team of Soviet agents all looking for a forged document about false Soviet invasion plans for Turkey. The action starts in Turkey's capital of Ankara and ends up in the city of Istanbul.
Background to Danger had to be the first American made film based in Ankara. Before the overthrow of the Ottoman Empire, Ankara barely passed for an oasis. Mustapha Kemal selected it for his capital because of its central location on the Anatolian peninsula. The city grew exponentially between the wars and Turkish neutrality in World War II kept up the growth rate though the Ankara we see here is depicted on the back lot of Warner Brothers studio.
All the neutral capitals in the World War II years were good subjects for espionage films. Everyone of them could have been described like Ankara as a city of a thousand plots. Too bad a better film couldn't have been done here.