Deliberate mistake: An LAPD cop discharges his firearm a full size Glock which has a minimum magazine capacity of 13+1 for the Glock 21. The Glock 21 is approved LAPD issue along with other variants. He fires maybe three shots and the slide locks back signalling that it's dry. A second later the same cop is walking with the same empty Glock aimed towards the suspect which was shot at. It's visible that the slide is being held back by the slide stop since the magazine went dry. (01:29:58)
Deliberate mistake: Earl attended the "2005 National Daylily Convention." The wording is not accurate, perhaps for purposes of brevity. There is no "National Daylily Society", but there is an "American Daylily Society." Likewise, there is no "National Daylily Convention", but there is a "National Convention for the Daylily Society." (Incidentally, the dates for 2022 are/were July 6 - 9). (00:03:43)
Deliberate mistake: When Walker leaves the tunnels in London and Hunt follows him, they both start their way to the Tate Modern Museum at Queens Head Passage / Paternoster Row. While Hunt is being chased and cannot choose his route, besides not knowing about Walker's destination, Walker deliberately takes a detour to Blackfriars Station and the bridge, even though he could just have walked a direct line from St. Paul's Cathedral towards Tate Modern using Millennium Bridge to directly cross to the museum and his getaway. The whole chase sequence would be obsolete. (01:31:58 - 01:36:56)
Deliberate mistake: For dramatic purposes, the crew is shown surviving for several days. The investigators found evidence that the fire in the compartment occurred around six hours after the Kursk sank, and that the survivors had died before the first rescue attempt took place. They wouldn't have been saved even if the multinational team had been called in sooner.
Deliberate mistake: The movie is set in "Harburg County", Pennsylvania, but there is no county in Pennsylvania called "Harburg." (00:13:38)
Deliberate mistake: There is a wooden chair upside down on the floor, with legs that angle outward. Jack Cain is able to pick up a party-goer, throw him down from over his head, and spear the party-goer on the right side with two of the chair legs. The chair legs are still angled outward but will break off to the side from the force of the party-goer's back hitting them. (01:07:17)