This movie has been done due to a request of Clint Eastwood, who wanted a more brilliant role in order to show his acting capabilities, after his well known action and spaghetti western movies. He teamed up with a director of his trust, Don Siegel, who is not known for his skills in directing comedies. Further, Clint and Shirley MacLaine apparently did not match. So what came out of their effort? An "odd couple" movie that mixes action, war, western, comedy and some romance. Siegel is comfortable with action and you can see it when action comes to the screen. The rest does not really work. The script is not so funny, the different parts do not make a movie. Moreover, the western part is a quote from Sergio Leone, with its mix of venturers, Mexican revolution, etc. Anyway, I rated it 7 because I love Clint Eastwood and he is good in his role.
Review of Two Mules for Sister Sara
