Connected

Connected is a 2009 post-apocalyptic short film directed by Jens Raunkjær Christensen and Jonas Drotner Mouritsen. There is a Facebook group, which describes the short as "a sci-fi western".

from the directors' web sites:

Set in the distant future, Connected is a story about survival and greed with a post apocalyptic wasteland as its backdrop. Survivors of an unknown disaster shuffle through a desolated landscape, as it quickly becomes clear that not everybody has the strength to survive.

Quiet Earth calls it "stunning". /film says it "makes the most of what I assume to be a fairly low budget."

HT: The Zeray Gazette