Goofs

A ship which is supposed to be in occupied Bordeaux harbor has the letters P.L.A. on the stern which stands for Port of London Authority

The action is supposed to be taking place in winter (December 1942) but all the trees are in leaf.

In the last 20 minutes of the film, the SS second-in-command, while seated and speaking on the telephone, wears silver & black epaulets completely different from the silver & red epaulets he wears in the next shot when he's shown standing and giving the "at all costs!" order.

After Sgt Craig hands over the mine to the men during training, he tells them that they have 12 minutes to lose it. The men run off leaving Craig behind, but when they get to the beach Craig is there in a canoe waiting for them.

As Cooley and Todd are getting into their canoe, the Germans appear. Cooley tells Todd to prime his "Little Nell" so they can make a run for it. Todd is already in the canoe and Cooley is half in. After cutting to the Germans, the camera quickly returns to Cooley and Todd who are now standing beside their canoe.

Captain Thompson is talking to Major Stringer about his family history. He claims to have joined up in 1918 just in time to take part in the Battle of Cambrai. This was actually fought from November 20th to December 3rd 1917 so he would have missed it.

Most of the German soldiers in the film carry British Lee-Enfield rifles. Yet some have Mausers, so the avoidable error defies explanation.

The buses going round Parliament Square are contemporary to the year of production not to the year when the Operation took place.

In the later parts of the film German officers are seen saluting the British troops and their own using traditional salutes, both palm out (British Army style) and palm down (Royal Navy and German Wehrmacht style). However the officers are dressed in Schutzstaffel (SS) uniform and as the paramilitary wing of the Nazi Party would invariably use the Nazi ("Hitler") salute and no any other kind - and certainly wouldn't do it as a mark of courtesy to the prisoners who they were treating as saboteurs.

When parachuting the "stick" fails to connect their static lines. The parachutes would fail to open automatically when exiting the aircraft as shown by the external shot.

The SS officer near the end of the film salutes British style, palm outward. It seemed to be a deliberate gesture of respect for the Brits. The NCO then saluted the officer normally.

When depth charging the sub with the marines on board, in the first run the ship shown is HMS Flint Castle (F383), in the next run the ship shown is HMS Leeds Castle (F384). Plus German ships did not use Pennant numbers as shown.

The German soldiers guarding the dockyard drive American jeeps.

During the evasion exercise, a train is shown leaving a station with a British Railways emblem on the side of the locomotive. The film takes place during WW2 (1939-1945), but British Railways did not come into existence until 1947-1948 when the railways were nationalized.

2-tone Austin A55 saloon seen in scene where one marine is jogging back to the barracks (car was new around 1955)

As Cooley & Todd are about go leave in their canoe a German patrol approaches them a crew member can clearly be seen along side the soldiers crouching on the left bank.

The explosives had 15 minute fuses. They were captured, taken to German headquarters for questioning and brought outside to be shot before the explosions went off.