I just realized that that's a perfect example of Gamma movie.
Not only the themes, the characters make up the Gamma quadra:
Stephen, the pilot - LIE (not a particularly bright one though)
Francine, the reporter - ESI
Peter, one of the SWAT guys - SEE
Roger, the other one, bitten by a zombie early on - ILI, but that's the worst fit of all.
So, you want a good example of Gamma movie, themes, and characters, I suggest the original Dawn of the Dead.