Sullivan states that he is going to the 8th floor. However in a few shots before that the elevator indicator only went from one to six.
In the final shot of the mass of agents spilling out of the Chief's elevator office, two pieces of electronic equipment mysteriously appear on the left-hand side of his desk.
The people in the elevator are ordered to inhale to make more room. You need to exhale to make more room.
After Max and Larabee climb out of the cab of the armored truck, as they walk towards the back of the truck it starts slowly rolling forward, the gear shift lever having apparently been left in neutral. After the truck rolls forward about two feet it lurches to a stop after either hitting the curb or after an unseen driver in the cab is able to either shift it into gear or apply the brakes.