M'Lynn's home is actually two different houses. The Cook-Taylor House, owned by the Henry Taylor family and now a Bed and Breakfast in Natchitoches, was used for the outside front of the house, and most of the scenes inside the home and in the back yard. It is on Front Street by the river and can be easily located, as it is now known as "The Steel Magnolias Bed and Breakfast." During filming, the Taylors moved out and rented an apartment.
On the DVD's commentary track, Herbert Ross describes how Georges Delerue was not his first choice as a composer for this film. Another "well known" composer's music was rejected but he fails to say who.
Before the wedding, all of the girls are in Truvy's, talking. Clairee is sitting in front of a stack of Easter eggs. Notice how the colors and placement of the eggs change almost every time the camera pans to Clairee.
When the women are in the beauty shop when M'Lynn has Jack
Jr., Clairee's rollers are in a certain sequence in one shot and then in a different order in the next.
When Sammy makes Annelle a cherry Coke, the glass changes after he pours the Coke, but before he throws the cherry into it. The level of liquid also momentarily drops.