Macho Callahan (1970)

Macho Callahan is a 1970 Mexican-US western drama film. It features David Janssen, Jean Seberg, Lee J. Cobb, James Booth, and David Carradine. Macho Callahan breaks out of a Confederate military prison, intent on revenge against the man who conscripted him into the army. Before he gets started, he kills another man in a petty dispute and is in turn pursued by the vengeful widow.