Best of all is probably the location work: the whole film was shot in Mexico and, crazy as it may seem, Mexico locations used for a Mexico setting works really really well.
And as for the guns comment, Hogan does use 2 guns, his rifle to blow the bridge with the help of Sister Sara and his ever-trusty pistol.
I'm almost ashamed to admit it, but until just a couple of days ago, I'd never actually seen Two Mules for Sister Sara. Sure, I knew all about it, including things that spoiled certain surprises for me, but I never sat down to watch the thing. I was missing out.
dont be ashamed. Thats pretty much the only Clint Eastwood western I have yet to see. I think most here can say the same.
Somehow I think the most most-neglected Eastwood western is probably Paint Your Wagon... but I know what you mean.
Easily Don Segal's best Western and his best work with Eastwood
Better than "The Beguiled"?though I havent seen "Two Mules..." it will be hard to top TB (in my book anyways).