Why was the K-19 called The Widowmaker?
(SLIGHT SPOILER WARNING) It seems to have been jinxed. Some men died during the construction of it. Six or seven men died during the incident portrayed in this movie. It was then cleaned up and used again, re-launched in 1971, and I believe 19 men died in a fire that broke out in the K-19. So it was genuinely jinxed, it seems.