Firing a weapon next to someone's head can (and often does) cause permanent hearing loss. It would be an asinine training maneuver to risk serious injury to a trainee by discharging a handgun within several feet of them.
When the opening engagement scene is being filmed on the protagonist's, it's clear in several scenes that the screen is either blank (indicating that nothing is being filmed) or the screen has a photo on it which is not what is front of the camera lens.
After entering the bathroom, Annika starts filling the tub. When Mitch throws her in the tub, a minute has passed, at most, and the bath is completely filled with water.
Scenes supposedly filmed in Turkey clearly haven't been as none of the vehicles have Turkish number plates and other than the mistress of Sharif, none of them actually speak Turkish fluently.
The building shown to the "Iranian Embassy" in London is not the embassy, but another building entirely.
A request from Hurley to the pilot - 'Get me on that boats bandwidth' The correct description to establish contact with a ship or craft with a radio is 'channel'. VHF is the bandwidth for all channels used.
When the bomb has been identified as being near the Navy fleet, they do not change course out to sea to distance themselves from the threat.
The initial impact of the giant wave into the fleet strikes the ships abeam, that is perpendicular to the ship. If this was the case, most of the ships would have been capsized but in the calm sea after the wave, only one ship has been capsized.