Factual error: At the 7-eleven as the Latino is walking up to the store you can see a 2001 Chevey Van pull out of shot,the film takes place in 1994. Other 2005 model vehicles are seen throughtout the movie.
Factual error: Halfway into the film, a scene shows Capote talking on a beige telephone. The receiver is a modular (plug in) type. Modular phones were not introduced until after 1966. The time frame for this movie is 1959 through 1963. All other scenes in this movie show the correct type of receiver (wired, not plug-in).
Factual error: In the very first shot of the movie, a clock is shown ticking. The time on the clock reads 05:59:56. It is obviously AM because a few seconds later at 06:00:00, Frank wakes up as if it was morning. As Frank sits up, clear daylight is visible outside of the window. This scene is supposed to be set during winter. We know this because there are many Christmas decorations. Since this is meant to be winter, it should still be dark at that time of day. (00:00:40)
Factual error: In the scene where Lt. Exley arrives at the Night Owl after the murder, the patrol officer is wearing a Safariland velcro-fastened handcuff case on his left hip. That style of rounded cuff case was not introduced until the early to mid 70s.
Factual error: In 1973, directly after the scene where Sam had to chase the dog down the street, he sits in his apartment alone, watching Julie Nixon's wedding on TV. She was married in 1968.
Factual error: While Fletch is riding with the bikers, they stop at a stop sign where a family in a station wagon roll up their windows in fear. A sign at a service center in the background is the Castaic Junction, which is in the greater Los Angeles area. The movie is supposed to be taking place in Louisiana. (01:12:35)
Factual error: Right after the movie title is shown, you can see in the background a UPS truck. The only problem is that it has the new logo on the side of it. (00:02:00 - 00:06:00)
Factual error: As Ray is fighting the big inmate over the cornbread, Ray falls over, revealing a yellow patch on the bottom of his boot. That patch is the trademark of a Vibram sole. Vibram started using the yellow patch in 1965. The scene takes place in the 1930s.
Factual error: They go to Texarkana Texas to pick up the beer and later in the movie they are in Fayetteville Arkansas. Why would they go due north to Fayetteville to get to Atlanta which is due East?
Factual error: When Marv is talking with the Priest in the confessional, he cocks the hammer of his pistol as a means of interrogation. But in the next shot, the pistol is uncocked, without sufficient time for this to occur. In fact, the pistol is uncocked even when Marv shoots him. This cannot happen, since his pistol is a standard 1911 .45, which requires the hammer to be cocked in order to fire.
Factual error: The year is 1969 when they steal the first aircraft (single engine Cessna), and there is a 757 taking off in the background. The 757 first flew on 02-19-82. (00:22:05)
Factual error: The film takes place in the Thirties. The song "You are My Sunshine" is featured, but was not recorded by Jimmie Davis (its composer) until 1940. [Acknowledged by the directors]. (00:11:15)
Factual error: In the scene where Trey's father shoots at the burglar the gun punches baseball sized holes in the door. A .357 Magnum bullet going through a thin wooden door would just punch through, without expanding or tumbling, and leave a hole only a bit larger than the bullet diameter.
Factual error: Stone sneaks aboard the USS Independence (CVA-62) to investigate the bad guy's arms cache..yet, when he dives into the water, he is jumping off the USS Hornet (CVS-12). (00:50:35 - 00:57:45)
Factual error: When Billy The Kid is taking a bath and dictating a letter to Doc, intended for the governor, he says he is in the Mexican village of Juarez. This town was actually named "Paso del Norte" at the time, it wasn't until 10 years after the events depicted in the film that it was renamed "Ciudad Juarez."
Factual error: Laurel shoots her husband dead and gets the fingerprints of Catwoman on the gun. When Catwoman/Patience later is interrogated for the murder, they say that her fingerprints were on the weapon that killed George Hedare. In a case like this, they would surely do a test for gunshot residue on both Patience and Laurel. The lack of GSR on Patience would at least have created certain doubts.