Hoke and Daisy are stopped by state troopers in Alabama, but the patch on the trooper's left sleeve indicates that they are Georgia State Troopers, and therefore are out of jurisdiction.
In one of the scenes where Hoke is driving Miss Daisy through her Atlanta neighborhood, if you look out the car window, you will see a 1980's Chrysler/Dodge minivan parked at a home in the background. There were no 80's minivans around in the era of the film.
Hoke drives past the same house with the same truck in front of it twice in in fifteen seconds when going home from the temple.
After leaving the temple; while Hoke is trying to apologize for parking out front. They make a right-hand turn, and a man can be seen standing about 2-3 feet from the store window (wearing a tan hat, white shirt, and blue coat). In the nest view, through the car windows, he can be seen again but he's now against the wall with no window anywhere.
Hoke arrives at Miss Daisy's on the day of the ice storm. As Miss Daisy walks across the room, there is a window behind her and it looks like a green leafy tree can been seen outside. It looks like it is a very cold snowy day so unless the tree is a pine or fir, it looks like spring or summer. Also there is no ice or snow on the tree.
On the day of the ice storm when the power goes out, Hoke brings Daisy coffee because he says her stove would be out. In previous scenes she has a gas stove (a Chambers), and gas service generally is not disrupted when electrical power goes out.
In the very early scene where Miss Daisy is inside starting her car it is a 1949-1953 Chrysler. The car shown backing over the wall from the outside is a 1946-1948 Chrysler.
When Hoke insists on stopping "to make water" at night, the billboard shown is advertising the '57 Plymouth. The car shown on the billboard is a '55 Plymouth.
When Daisy visits the Piggly Wiggly near her house in the Druid Hills neighborhood of Atlanta, a small movie theater named the Rialto is next to it. In the real Atlanta of that time, there was a major downtown movie theater named the Rialto (now the Rialto Center for the Arts). A small neighborhood movie house would not have taken the same name as a downtown first-run theater.
On the way to Mobile when Hoke needs to make a "pit stop", they pull over near a billboard with a Plymouth ad which reads 1957 but shows a 1956 Plymouth.
When Hoke gets back into the car after being questioned by the police, there is foliage from two different trees grouped together, visible in the reflection of the window; probably so the audience can see Hoke through the glass. Then in the long shot of the car pulling away, there are no trees or plants close enough to the car to have caused those reflections.
Outside the car dealership, two cars are driving in the same direction through the intersection, one in front of the other, but the car ahead goes straight through the intersection in a left-hand turning lane, without causing an accident or any honking horns.
At the beginning of the movie, Daisy comes out to her car, and gets in. She turns the ignition key, and immediately, we hear the engine start. This is technically incorrect and misleading. In those days (late 1940's and early 1950's), the ignition and the starter were two separate control devices. For this Chrysler automobile, what we should have seen is this: We should have seen her turn the key, which turns on the ignition, nothing more. After that, we should have seen her press the starter button, which actually starts the engine.
The art deco style sign on the grocery store was shown as "Piggly Viggly" instead of "Piggly Wiggly". At least that's what was shown in a photograph of the front of the store from the scene.
Daisy's son is referred to as Boolie throughout the entire movie. There is no indication of this being a nickname or his real name, with one exception. When Boolie receives the Man of the Year award, the trophy reads "A. Werthan". So what does the A stand for??
The bombing of The Temple in Atlanta took place in 1958, yet is shown as occurring in 1966 or later (because it is shown after the scene in which Boolie receives an award in 1966). Hoke is also driving mid-1960s Cadillac in the scene.
The American flag in the Cadillac showroom has 50 stars (there were 48 states in 1955).
During the winter ice storm, Hoke brings Miss Daisy coffee from the Krispy Kreme in a polystyrene cup. Those type of cups were not available during that time.
The scene during their initial part of their trip to Alabama, there's a shot with long camera view down railroad tracks at a railroad crossing a street. In the distance, a modern diesel locomotive of the Norfolk Southern railway is visible, though slightly hazy in a long zoom.
When Hoke is eating while sitting at the kitchen table, there is a bottle of hot sauce on the table. The bottle cap can be seen to have a tamper-proof seal in place. Those weren't used at that time.
When Hoke and Miss Daisy are eating lunch while stopped beside the road, just before the policemen approach there is a crew member clearly reflected in the car door.
When they are stopped eating lunch on the way to Mobile, they had just commented on how they just crossed into Alabama. The policemen that question them are Georgia Patrolmen (patch on sleeve).
During Daisy's trip to Mobile where they come to the fork in the road, the highway markers show US Highway 23 (diverging left) and US Highway 85 (diverging right). While US Highway 23 runs through Georgia, US Highway 85 is a north-south US Highway that runs from New Mexico to North Dakota and does not run through the southeast United States at any point.
When Hoke arrives to drive Miss Dairy to Uncle Walter's party in Mobile, Miss Daisy says it it 3 minutes past 7. Near the end of the scene, only a few minutes later, she says that it is 7:16.