Directed by: Ronald Neame
Starring: Sean Connery, Karl Malden, Brian Keith, Natalie Wood
Character mistake: USA flags are supposed to be displayed with the Union (blue area) on top left corner, whether it's displayed horizontally or vertically. USA missiles at times displayed the flag backwards. Also, at the end of the movie, the flag hung on the hangar next to the USSR flag is backward. (01:40:57)
Continuity mistake: Malden enters a bar to meet Connery. Sitting on Connery's right is a white-hared guy, so Malden sits on his left. We switch to watch the TV, and when we return, Malden is now on Connery's right.
Dr. Paul Bradley: Why don't you stick a broom up my ass? I can sweep the carpet on the way out.
Trivia: The avalanche scene, where a "splinter" that hit the Swiss Alps causes the avalanche consists of stock footage from the made-for-TV movie Avalanche, which made its debut a year earlier. (00:59:20 - 01:01:20)