When the children run out of Mr. Will's room after playing his phonograph, Frank leaves the desk lamp on. When Mr. Will discovers the record is scratched, the lamp is off. Since he is blind, he would not have used, or changed, the lamp.
Frank climbs the steps of the porch at the dance twice.
The rope around Wylie changes.
Frank's top button is different after he stops to look at the homeless woman during the storm.
Cotton prices were never as low in 1935, when the film takes place, as depicted. In fact, the price of cotton that year ranged between 11 and 12 cents per pound and kept going up that year due to an increase in U.S. cotton exports.
The tornado winds upend cars and cause houses to explode, but Moze's hat stays on his head while he drags Frank into the storm cellar.
As everyone emerges safely from the root cellar after the tornado, debris is everywhere, but nothing is wet. It will always rain in a thunderstorm big enough to spawn a tornado, so everything should be soaked.
A kitchen scene show iron skillets and other cookware, all gray. Only new iron cookware is gray. After it's been used, even for just one month, it turns black.
At the barn dance, the Martin guitar being played front and center has no strings; compare it to the second guitar in the background: the strings are clearly visible.
In the final credits, the real name of Otis the fiddle player, Cliff Bruner, is wrongly spelled as Cliff Brunner. He was a well-known fiddle player with Milton Brown's Musical Brownies.
The story is supposed to take place in 1935. Depression glass is used throughout the film. Most of it is correct, such as the Madrid pattern in amber used in the opening shot, which was made by Federal Glass Company of Columbus, Ohio between 1933-1939. However, the salt and pepper shakers on top of the stove in a kitchen scene are the Waterford pattern made by Hocking Glass Company (now called Anchor Hocking) from 1938 to 1944.
When the sheriff is seen in the rail yard, the highway bridge in the background is constructed with precast concrete beams that had not been invented until many decades after this film's 1935 setting. There are two plaques on this bridge. The first states that Historic Waxahachie, Inc. recognizes the bridge, built c. 1931, is worthy of preservation. The second plaque is a Department of Interior statement that the bridge, date 1931, is on the National Register of Historic Places.
In the tornado aftermath, a damaged power pole appears to have cable TV wiring.