Watch Two Mules for Sister Sara (1970) (1970) HD Full Movie Free on SolarMovie. Watch Two Mules for Sister Sara (1970) (1970) online free. Nun Sara (Shirley MacLaine) is on the run in Mexico and is saved from cowboys by Hogan (Clint Eastwo...Nun Sara (Shirley MacLaine) is on the run in Mexico and is saved from cowboys by Hogan (Clint Eastwood), who is preparing for a future mission to capture a French fort. The pair become good friends, but Sara never does tell him the true reason behind her being outlawed.