A man’s gotta do what a man’s gotta do Posted by Marcus Webb on April 20, 2010 at 08:27. What is the original source of the line, “A man’s gotta do what a man’s gotta do”? John Wayne is often credited with saying this in “Stagecoach” but what he actually said (I checked the screenplay) is “Well, there’s some things a man just can’t run away from.”
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