Goofs

When Charlie first leaves the shop with the Optometrist, she goes back to unlock the door. When she does, she pushes open the door as she inserts the key revealing it was never locked. She then pulls it closed and goes through the motions of unlocking the door.

The railway carriages are marked with British Railways logo and a 'Do Not Lean Out of the Window' is visible on the open door as Coward catches the train to Vienna.

The final escape as firemen is carried out in a British right-hand drive Leyland fire engine.

Sgt. Maj. Charles Coward (Dirk Bogarde), disguised as a German officer helps to wreck a train, but it can be seen that the locomotive is an English one.

When a Jeep full of American soldiers, fighting through Germany stops to talk to Coward and his men, one of them is black, though there were no integrated U.S. armed forces until 1948.

While dressed as a Nazi officer, Coward steals a bicycle, and when he is temporarily stopped by its owner, one can see a 1962 automobile up the street.

When Sergeant Major Coward is discussing linking up with the Polish Underground, he is told that the agent is an optician somewhere in Poland, in Breslau. Breslau was, in fact, a German city and did not become Polish until after WWII when the boundaries of Poland were shifted westwards and the name changed to Wroclaw.