Stereotypes of the Post-Apocalyptic Genre

From my trailer analysis, I found that many aspects were consistent throughout the four films:

• A dangerous setting is established either at the trailer's opening, or soon after.
• The event the caused the apocalypse is mentioned, but never seen or understood.
• The Post-Apocalyptic setting is established at the start of the trailer.
• The protagonist is male.
• There is often a lack of bright colours.
• There is some hopeful imagery/music so that the film does not appear entirely depressing.
• There is often narration from the protagonist.
• There is usually a fair balance of plot-based shots and action-based shots.
• Characters often wear improvised/rugged clothing.
• There is often religious imagery/references to connote 'judgement day'.
• Long shots are often used.