Factual error: In the opening scene of the movie, the Red October is being escorted out of the Russian harbour by a United States Coast Guard Cutter and U.S. Navy sea tugs. (00:02:30)
Suggested correction: You may be aware of the fact that they used American boats (I doubt they had access to Soviet ones), but there are no distinctive American markings or livery visible. Most notably, you don't see USCG racing stripe in the boat to starboard (the only one which is not a tug).
Continuity mistake: The opening shots of Red October sub show water slapping against it. At the water line, the flat/vertical sides of the fake sub are visible - a very different look than the underwater model's tapered sides. (00:03:00 - 00:29:30)
Continuity mistake: When Sally is saying that Stanley is keeping her awake, her grip on the bear's ear is changing between constant shots. (00:04:40)
Factual error: At the beginning of the film Jack says goodnight to his daughter and then leaves for the airport to catch the flight to Washington. He arrives at Heathrow in the dark. A flight to Washington From Heathrow takes 6-7 hours, and Washington is 5 hours BEHIND London. If Jack leaves at, lets say, 10PM London time, he would arrive at midnight US time. But in the film he's met upon arrival and gets straight into a car at the airport and drives to the CIA offices for his meeting with Greer. The problem is it's daylight when we see the car driving to Langley, which is a relatively short drive from Washington and the Airport (s) - where did the night go? (00:06:00)
Continuity mistake: When Jack is getting off the plane in the beginning of the movie, his jacket collar is up. When he meets the 2 men who are there to pick him up, the collar is now down. (00:06:10)
Continuity mistake: Towards the beginning of the film, when Captain Marko Ramius kills Political Officer Putin, Ramius initially grabs Putin's face and forehead from behind, pulling the political officer off balance and into the edge of the table at which they were just sitting and discussing their orders. In the cut just before Putin slumps to the floor and falls backwards, Ramius' hand is now high on his victim's chest, near the collarbone.giving an extra push. Putin also moves some distance towards the door as he falls backwards onto the deck and dies. (00:18:30 - 00:19:00)
Other mistake: When the sub is ordered to turn right, Ramius is seated facing forward and tightens his seat belt. When the sub makes a tight right turn, his coffee cup slides the wrong way. (01:00:01)
Continuity mistake: As the helicopter nears the Dallas sub, Ryan is in the right-side doorway at the rear of the opening. A spotter is on the same side of the craft, at the front of the opening. The spotter looks straight out the right side of the chopper and shouts for the pilots to turn left, as he has spotted the Dallas at three o'clock (which is where he is looking). But turning left moves away from the Dallas, not towards it. (01:23:30)
Character mistake: As the helicopter crewman sees the Dallas surfacing, he says something along the lines of, "Sub at three o'clock". The next shot is from inside the helicopter and shows the sub and a part of the starboard landing gear retracting pod. This shot puts the Dallas closer to one o'clock. (01:24:00)
Factual error: When the USS Dallas submerges to attack the Red October, they rig for battle stations as well as rig for red. On a submarine, rig for red is only for periscope depth operations at night, to allow control room watchstanders eyes to adjust to the darkness topside. No other area on the boat rigs for red. Throughout the movie the lights darken along with battle stations. No naval ship would reduce visibility on purpose in a heightened state. (01:31:00)
Visible crew/equipment: In the scene where Ryan is being flown out to the Dallas, the door crew member looks out and says, "Yo, got a sub about 2 miles out." If you look closely in his goggles, you can see the reflection of the crew. (01:45:30)
Visible crew/equipment: When the Red October sub has surfaced to let the crew get off because of the supposed nuclear leak, there is a brief shot where you can clearly see the camera and its filming crew in their tennis shoes on the deck. (01:45:52)
Continuity mistake: When Ramius is shot, he drops to the floor holding his wound with his left hand. He is still using his left hand when Ryan asks "What happens if he makes it to that ignition circuitry". The angle then changes, and Ramius is holding his wound with his right hand as he answers "He can incinerate the ship". New angle change, and Ramius is once again using his left hand on the wound. (01:56:35)
Continuity mistake: During the final battle, Borodin announces "Torpedo impact, 20 seconds". Ramius and Ryan discuss a book Ryan has written for the full 20 seconds, then Borodin updates, saying "10 seconds.." It's then a further 15 seconds before the torpedo actually hits. (01:58:10)
Factual error: When Jack Ryan is chasing the Cook's Assistant Igor Loginov through the missile compartment, the compartment shown does not exist. Russian Typhoon submarines (of which the Red October is a variant, just with a new propulsion system) have a pair of cylindrical pressure hulls - each containing a missile compartment - on either side of the missile tubes. The location where the fight takes place in the movie would be inside a free-flood area in a real Typhoon. (02:01:20 - 02:05:00)
Revealing mistake: Near the end, when Ryan and Ramius are talking, right before Ryan says "welcome to the New World", Ryan is facing Ramius and his thick hair should be blocking the hill in the distance behind him, but his hair is translucent and the hill is visible through his hair. (02:06:00)
Character mistake: Characters refer to the Dallas and the Red October as "ships," but anyone stationed aboard a submarine would know to call it a "boat."
Factual error: Aboard the aircraft carrier, there is a closed-circuit TV that shows the operations on the flight deck. At one point, a gull-gray F-14 Tomcat, in obvious distress, comes in for a landing. The camera cuts away from the TV to Ryan's face, and the cuts back to the TV. All of a sudden, the plane crashing is no longer an F-14, but an old Korean War-era fighter (F-9F Panther of VF-21), colored the dark blue the Navy stopped using in the 1950s. The director chose to insert a piece of stock footage from George Duncan's crash on the deck of USS Midway (CV-41) on July 23rd, 1951 rather than build a model F-14 to crash for an otherwise unimportant scene.
Revealing mistake: In the scene where Jack Ryan is brought aboard the U.S.S. Dallas after releasing himself from the helicopter, two crewmen drag him inside. The crewman on the left side of the passage backs into a metal valve, but the valve moves down and left, then snaps back in place as if mounted to a rubber pipe.
Factual error: The Hunt for Red October takes place sometime in late 1984. The Oliver Hazard Perry Class Frigate Reuben James (FFG-57) on which Adm. Greer and Skip Tyler were on board in the latter half of the film, was not commissioned until March 22, 1986.
