ट्रिविया

This film is loosely based on actual events, though they happened to German soldiers, instead of Allied soldiers.

Not released theatrically in Britain.

One of the films producers (Edgar Bronfman Jr.) was only 18 years old when the film was released.

Closing credits epilogue: In June 1951, workmen clearing German fortifications opened up an underground blockhouse . . . .

Two men emerged, the sole survivors of a group who had been trapped there for six years . . . .

They had lived for at least four years in total darkness.

The film was never given a proper release in Britain.