In the 13th minute Sydney, in Nevada, hears of a virus-related death in Diablo County which is in California. She drives there in about a minute of film time Then, it is unclear at what time line Sydney ends up back in Nevada.
In the 37th minute Sydney's pickup has a front license plate. Earlier, it did not.
In the 20th minute a military vehicle coming toward the camera makes a sharp left hand turn. This scene repeats in the 20th minute.
In the 17th minute Dr. Green is speaking with Sydney while wearing a face mask. Her mask indicates that she is not actually speaking but breathing in through the mask.
In the 36th minute, two soldiers carrying someone in a body bag but they don't notice Sydney hiding right beside the door frame.
In the 43rd minute Spenser asks Sydney to put the prodder down. It is called a 'cattle prod.'
In Sydney's first scene, she pours water from a bottle into a dog's bowl, yet when the dog walks up to the bowl he clearly starts eating rather than drinking.
In the seventh minute during the phone call, Sydney's drawn-in eyebrows are significantly uneven. They are even in the next scene but continue to change through many scenes. They are brutally uneven again in the 30th minute.
This really isn't Phoenix, Arizona but Buckeye. Arizona 30 miles from Phoenix.