Directed by: Ronald Neame
Starring: Sean Connery, Karl Malden, Brian Keith, Natalie Wood
Visible crew/equipment: When Bradley is in the control room, the T-mark on the floor is visible. (01:12:30)
Visible crew/equipment: In Hong Kong, when the people are running for their lives, check a group of bystanders on the left behind a safety barrier, calmly watching the filming.
Factual error: When Mission Control talks with Challenger 2, the Spacecraft's camera feeds of the Crew are displayed up on two wall-sized TV screens. Between them is the familiar Mercator map of Earth with the ground track of a low-orbiting satellite superimposed. Challenger is nowhere near low orbit: it's out past Mars, in the Asteroid Belt. The middle screen would have a schematic of the ship's interplanetary path.
Tatiana Donskaya: One day you will come to Moscow and you will see a clean subway.
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)