This movie is firmly listed under “films we couldn’t make today” or “films we couldn’t make today unless we included a lot more diversity.”
The Great Escape (1963) is one of my all time favorite films. It features an all-star cast which includes Steve McQueen, James Garner, Richard Attenborough, Charles Bronson, among many, many others. The film is based on a 1950 non-fiction book written by Paul Brickhill chronicling a firsthand account of the mass escape by British Commonwealth prisoners of war from German POW camp Stalag Luft III in Sagan (now Żagań, Poland).
The film is a highly fictionalized version of those events and made numerous compromises which departed from fact, including the addition of three Americans to the cast (McQueen, Garner, and Judson Taylor) to accommodate U.S. audiences.
Here’s the plot summary from imdb: