The Hills Run Red 1966

Overview

Role: Meticulous television and film archivist.
Task: Write a 150-190 word overview of the film "The Hills Run Red" (1966).
Constraint 1: Use ONLY verifiable facts from the provided SYNOPSIS and SOURCES.
Constraint 2: No inventing/guessing titles, names, dates, counts, awards, ratings, etc.
Constraint 3: No markdown, no asterisks, no headings, no bullet points.
Constraint 4: Original, neutral, encyclopedic prose in plain text.
Constraint 5: First sentence must not contain spoilers.
Constraint 6: Word count must be 150-190 words.
SYNOPSIS (TMDB): After Civil War ends, two soldiers return home with stolen money. Caught by Union troops. One escapes, one goes to prison for five years. Upon release, he finds his wife died in poverty because his partner kept the money and is now a major power with an army of gunmen.
SOURCE [1]: Title: The Hills Run Red (1966). US Release: 11/10/1967. Genres: Action, Western, Drama. Runtime: 1h 29m. Description: "The man who had five years to think about killing... his best friend! Finally they meet..."
SOURCE [2]: Mentions "A River of Dollars (with Reynolds and Henry Silva, later filmed as The Hills R" (incomplete/cut off). It links "The Hills Run Red" to a film later filmed from "A River of Dollars". Correction/Refinement: