“I’m not crazy, I’ve just been in a very bad mood for 40 years,” Ouiser Boudreaux (Shirley MacLaine) hollers in “Steel Magnolias,” a movie that has put us in a weepy mood for more than two decades. We’ve loved every tear. Directed by Herbert Ross (“Funny Lady,” “Footloose”) and based on a play written by Robert Harling, “Steel Magnolias” opened 25 years ago this week. A force of female friendship, the cast traveled the world to promote the film in 1989. Take a look at the premieres: