How long was the tunnel in The Great Escape?
Also asked, how long did it take to build the tunnel in The Great Escape?
Hidden under a stove in hut 104 was the entrance to Harry and after a whole year of construction, the tunnel was completed in March 1944.
Keeping this in view, how many prisoners actually escaped in The Great Escape?
There were some 11 'great escapes' carried out by British prisoners alone before March 1944. One example is the March 1943 escape from the PoW camp at Szubin, Poland, in which 43 Allied airmen tunnelled out. All the men were recaptured, apart from one, who sadly drowned.
The film is accurate in showing that only three escapees made home runs, although the people who made them differed from those in the film. The escape of Danny and Willie in the film is based on two Norwegians who escaped by boat to Sweden, Per Bergsland and Jens Müller.