Two Mules for Sister Sara is a 1970 Clint Eastwood Western directed by Don Siegal and co-starring Shirley MacLaine . We watched this because of Clint Eastwood, but its one of my least favorite of Eastwood's films. It's just a bit too cute for my taste these days.
Spaghetti-Western.net says, "For a film that is usually called a failure, it is remarkably enjoyable, but its problems are many" and calls it " a pleasant, if awkwardly paced movie." Roger Ebert calls it "a lot better than it might have been".