Corrected entry: During the scene where the dock worker gets the message that "The day has arrived" the date on his laptop says November 19th, 2002. When he receives the bomb he takes it to the Superbowl, which takes place at the end of January or the beginning of February.
Corrected entry: There's been some timeline juggling, but there's still an error after all the mental acrobatics. This film is set before the other three films, even though it's in modern times. However, if the events of Sum of All Fears were supposed to have taken place before Clear and Present Danger, then how come Jack Ryan met John Clark for the first time in Clear and Present Danger yet they work together in Sum of All Fears, which is technically before it?
Corrected entry: Jack is talking to his cell-phone after the explosion. I would like to see the phone mast that would stand a nuclear explosion.
Corrected entry: When Ryan and Clark are flying to Russia to look for those missing scientists, Clark shows Ryan some satellite pictures of the remote area where they suspect the scientists to be located. The day old photo shows activity in the area but the most recent one doesn't. They then discover that the bomb is headed for the U.S. and Ryan phones the CIA to warn them, But the bomb is already there! How did the bad guys manage to get the bomb from that remote location in Russia to a freighter and sail it to the U.S. in one DAY! This is something that should have taken weeks, which would have given Ryan plenty of time to get home and prevent the attack.
Corrected entry: When Ryan finishes talking with Spinnaker before he goes to the docks, he leaves the car he borrows and heads out through the flames. In the background, you can see a stunt coordinator waiting to guide him through the flames. He waits, then follows him off the screen.
Corrected entry: In the scene where Senior Russian officials are entering the underground base of operations, the president is told that American nuclear submarines are pulling out of Norfolk and Kings Bay armed with Trident D3 weapons. This is a mistake for two reasons: a) I speak Russian and I heard them say Trident D5, not D3 and b) American nuke subs are no longer armed with D3 missiles, they have mostly D5's, some have C4's. Also, I'm pretty sure D3's aren't considered first strike weapons, whereas D5's are. (01:32:35)
Corrected entry: Why does Clark find it necessary to cut the Ukrainian fence at all? When the guards discover the hole, we can see that Clark began the cut nearly a foot from the top of the fence. In fact, it is barely 8 feet high - with no barbed wire and a smooth bar at the top. Climbing over it (as opposed to cutting it) would have prevented the guards from detecting his presence. Maybe this is why they don't trust him with an email account.
Corrected entry: About an hour into the movie, when Ryan meets Clark after he is ambushed by the two Ukrainian officers, there are a number of mistakes. For one thing, the officers are not speaking Ukrainian, but pure Russian. Secondly, Clark asks Ryan to tell them to take their shoes off - but we've already seen that Clark knows Russian, when he talked to Spassky's mother. Why doesn't he tell them himself? After that scene, he remarks to Ryan, "You know Ukrainian?"... however Ryan too, just like the "Ukrainian" officers, was speaking Russian. (01:00:30)
Corrected entry: After the bomb goes off, Ryan uses the radio in the helicopter, but anyone knows that a Nuclear bomb's EMP (electromagnetic pulse) would have fried anything with an electronic circuit within the blast radius.