Truvy: Sammy is so confused he doesn't know whether to scratch his watch or wind his butt.
In the scene where Ouiser sits and lets out a belch, if you look in the mirror, you can catch her laughing.
This is a true story. After the death of his sister, Robert Harling locked himself in a room and 10 days later came out with this play which 3 years later became a movie. The movie was even filmed in the town that where everything happened and the nurse and doctors who cared for his sister Susan played themselves in the movie.