The soldiers' uniforms lacks flags, rack, insignia, etc.
A news report says that the US president has recommended a new branch of the Department of Homeland Security, the DHS. DHS is the Department of Homeland Security, and in 2021 employed 230,000 people.
Barbara Crampton's name is spelled "Barabara" in the beginning credits.
Early on, for many minutes the flying creatures are shown flying in the thousands overhead, yet none land or attack. They just fly overhead, as if they have another purpose.
At the point when the group reaches the gate facility, and are about to go in, you can see a semi-tractor truck behind the corporal.