The graphic nature of the murder was minimized by the director. In the film, Bernie shoots Marjorie four times in the back from a distance. IN FACT, the first shot paralyzed Marjorie and she fell to the floor. Bernie fired again from the same position. He then approached Marjorie aiming down at her body and placed the muzzle of the 22-caliber rifle to her back. He then fired two bullets directly into her body at point blank range.
The original jury was made up of seven black women and five white men. The genders are represented correctly in the film but only one of the women is black.
The choir is singing out of the United Methodist Hymnal with Bernie singing, "Blessed Assurance". The hymn number is #369, which is not correctly numbered on the list of hymns in the background.
When Bernie performs obituaries at a local radio station, the record player on the table is without a cartridge or stylus attached, yet a record is on the platter. Without a cartridge, there would be no way to play a record.
Bernie committed the murder in 1996, yet he answers an iPhone nearly right after the murder.
(at around 1 min) When Bernie is on the phone with Lloyd, there's an Apple Macbook Pro (Second Generation) in front of him. The Second Generation Macbook Pro didn't come out until late 2008 and the murder took place in 1998.
When Bernie is driving up to Mrs. Nugent's home, there is a close-up of the Texas State Registration sticker on the front windshield of the car which clearly says "12, 11" indicating that the registration will expire in December of 2011.
Late in the movie Bernie is driving and he gets a call on he's mobile phone, which is an iPhone. The first iPhone wasn't released until 2007, well after the events in the movie took place.
In the beginning of the movie where he is driving into Carthage, there are reflections of his vehicle which show a camera assembly on the passenger side of the vehicle with crew sitting in the seats.