Shirley MacLaine's Other Western
besides this one was of course the great 1970 movie Two Mules for Sister Sara which she co-starred with Clint Eastwood. The movie takes place in the 1860s in Mexico and Shirley MacLaine is in sympathy with Benito Juarez and his fight against the french. Eastwood is an opportunist who rescues Sister Sara (MacLaine) at the start of the movie. The catch is that being a nun is a disguise for Sister Sara which is revealed to the audience early in the movie but not to Eastwood until late in the movie. This makes the movie more humorous but it does have pleanty of action for western fans and is a good movie.
Shirley MacLaine co-starred in another movie called The Matchmaker with Shirley Booth (very good in this movie) and Anthony Perkins. I think it is set in the west in the 1890s but it doesn't really qualify as a western in my opinion. Also it has been many years since I have seen this movie so some of my analysis could be wrong but I remember Shirley Booth was great in it. It was made in 1958 and was one of MacLaine's earlier movies.