Monsters bears some meta-similarity to District 9. Both movies are about the an alien presence that is less than an invasion and how, in a short time, we develop systems and routines for dealing with the aliens. (Alien Nation is the granddaddy of this genre.) The two principal actors are interesting; the bonding road trip is familiar, although the circumstances are unusual. Recommended for fans of low-tech sci fi.
Six years after Earth has suffered an alien invasion a cynical journalist agrees to escort a shaken American tourist through an infected zone in Mexico to the safety of the US border.