Plot hole: The suitcase with all the money is at the fake doctor guy. This makes absolutely no sense - it was given to the girl. Why would she hand it over to that guy when they could have done the splitting of the money right that night?
Plot hole: When the "black diamond" is being turned into its dangerous form, the arms dealers get very excited. Yet all they actually see is a very pretty laser show. There is nothing to show that the object really has any destructive power. Arms dealers make their fortunes by being cautious and smart. They shouldn't be so quick to accept the claims of the bad guy and bid money on possibly useless stones. (01:18:20)
Plot hole: Fitch should have been aware of Herman Grimes being a selected juror for it was revealed that everyone who received a jury summons for the case was photographed in the beginning of the movie. Herman would have received a summons just the same as the rest and would have been treated the same.
Plot hole: The 3 minutes to destruction scene actually lasts for about 3 minutes and 30 seconds - they're lucky to be alive.
Plot hole: Aside from the fact that you can't have a semi-automatic rifle delivered to your doorstep (except to an authorized dealer), there's also the fact that the weapon apparently was shipped with a full magazine. This is ridiculous. All the boy did was take the mag from the box to the gun and it started firing right away. One can assume they already had the ammo and filled the mag inside the house. This is countered by the fact that when he takes the mag out of the box, it is empty. Freeze-frame confirms there is not a single cartridge in the magazine before it is inserted into the weapon. (01:21:40)
Plot hole: When Erica crashes at the Huston Raceway Park a helicopter from the University of Utah lands to pick her up, it doesn't make much sense to fly a trauma patient over three states; At least not until she is immediately stabilized at a local hospital. We even see a truck from the Huston International Raceway drive up to the accident.
Plot hole: It shows two air tanks missing on the boat. Now obviously when they get back to shore and all the tanks are put back, there would be two empty spaces, meaning hey, we forgot two people.
Suggested correction: True, but who says they didn't alert the authorities or return when they eventually realised it? Even if they did, the two divers drifted and were being stalked by sharks. It was set up earlier in the film when they showed their flawed way of tracking who went into the water and returned, so it makes sense that they overlooked what happened. There's also a scene when the boat returns where an employee notices two missing tanks, so they did notice it.
Plot hole: Just before Cowboy finally opens the bowling bag, the zipper is halfway up the right side. John was warned not to open the bag and was terrified by the potential consequences; he didn't open the bag at any point and certainly wouldn't have allowed it to remain partially open. (01:13:30)
Plot hole: In one of the scenes where Jones and Del Toro are fighting hand to hand, Del Toro's knife is knocked into the bushes. They continue to fight until a point where Del Toro has gained the upper hand. Del Toro is on top of Jones, who is almost unconscious. Instead of finishing Jones off, Del Toro looks around for his knife. This doesn't make sense. Del Toro is a trained killer. He doesn't need a knife to kill Jones.
Plot hole: After the team takes care of the ethnic cleansers, there is a flat-bed lorry with a belt-fed weapon just sitting there. Since the cleansers came in from somewhere ahead of the team, why not load the refugees onto the truck and head out? If nothing else, it would increase their lead over the pursuers.
Plot hole: Immediately after Seabiscuit injures his leg, the track vet tells owner Charles Howard that the horse will never race again. He offers to euthanize Seabiscuit, even though it was not a life-threatening injury. Even if Seabiscuit was unable to race again, a champion racehorse has more value as a stud horse. It is nearly inconceivable that a random vet would suggest this so early on. If anything, it would be "wait and see."