Violating the real-time formula, the hotel manager is in his office and his assistant tells him that there's people with guns outside. Then the next scene seconds later has the assistant in the basement trying to find a way out.
After Michelle Dessler gives off two warning shots in the hotel, she is shown in total. One can clearly see that the slide of her pistol is locked back, indicating an empty magazine. Yet in the next close-up, the slide is forward again.
When Tony Almeida ask a CDC doctor what's the mortality rate of the virus, she answers "90%". As it is a previously unknown virus, with just one human infected, there is no way that a mortality rate could be estimated.