Passepartout sits at a table in a San Francisco saloon. Someone throws a knife, which lands on the table next to his hand and knocks over a glass of beer. In the next shot, the glass is upright and full of beer.
When the American train stops unexpectedly, for the pow-wow with the Indians, and later, when the buffalo are stampeding across the tracks, the locomotive is behind the same cluster of bushes. Incidentally, the railroad would never allow foliage to grow that close to the right-of-way. They would cut it back, to avoid track fires caused by stray embers dropped from the engine.
When Passepartout tries to escape the Sioux on horseback, his horse leaves a trail of dust. The dust pattern changes completely at one point, revealing two scenes spliced together. A large rock in the background provides a shadow to fully observe it.
During the opening card game at the Reform Club, the number of cards Mr. Fogg holds fluctuates between 4 to 7, and not in descending order from playing.
When the sail-powered rail car passes the train, the baggage car that was on the train earlier is missing.
As Fogg and Passepartout prepare to leave Paris in the balloon, the basket is on the ground and a rope extends about eight feet to the side of the basket, where it is tied to a pile of sandbags to keep it down. When Passepartout unties the rope the balloon begins to rise. If the rope had actually been holding the balloon down, it would have be vertical and taut because the balloon would be above it.
As Passpartout and Fogg's balloon flies over the mountains, a pigeon flutters by. Pigeons do not fly that high.
When the RMS Mongolia leave Suez, sailors are climbing up the masts of a high tall ship. When the Mongolia is shown, it's a low rigged steamship.
At the unstable bridge, the engineer backs up the train to cross it at 30 mph. He doesn't back up far enough to accelerate to that speed.
Sati is a Hindu practice. Sikhism prohibits the practice and custom of Sati. Sikhs wearing Daster (Sikh turban) perform Sati in the movie.
In all close-up scenes with the gas balloon the basket ropes are tight from the load ring and down, but from the load ring and up to the balloon they are slack. Had it been a real flying gas balloon, all the ropes and the net above the load ring would have been very tight during flight, since they are carrying the weight of the basket and everything in it. The lifting force, a stage crane, is erroneously placed in the center through the appending gas valve. If the sandbags on the basket actually contained sand, they would not have bounced around so lightly.
When Passepartout is attacked by Indians, on top of the train, the rubber arrows bounce off him.
In the saloon, when the cigar salesman takes a swing at Fogg, he misses Fogg and Fix, yet Fix reels anyway.
When Fogg and Passepartout travel in the balloon, the streamers at the bottom of the basket flutter behind them. A balloon moves with the wind, so streamers tend to hang straight down or flutter randomly in the turbulence.
When the train stops just before going over the trestle, the card players seated at the table remain sitting perfectly upright, and do not at all show any tilting forward in their seats, which they would as a result of their inertia.
In 1872, the American flag at the Fort Kearney station would've had 37 stars. Colorado became the 38th state in 1877.
Fogg may have realized traveling east (toward the sun) gained him a day, but this film has him then saying they crossed the "International Date Line". A familiar fact to audiences in 1956, but not to travelers in 1872, since the IDL wasn't established until 1884.
The Sacre Coeur Basilica is visible when the balloon crosses France. Construction began in 1873.
When the tall ship US Grant arrives in San Francisco, radar installations are on the mast. It's actually a stock shot of the Nippon Maru, a 1950s Japanese training ship.
Paris's Gare du Nord is blackened by decades of street traffic, Paris chimneys, and steam engines. In 1872, Gare du Nord had just been built.
The music in the saloon does not match what the pianist plays.
In an early scene with Passpartout riding his bicycle, someone yells "Get out of the way!" at him, yet neither the cab driver nor the passenger leaning out the window's lips are moving.
In the bullfighting sequence, when the two trumpeters get up to signal the entrance of the bull into the ring, the sound of the fanfare starts just before they actually put the instruments to their lips.
The shadow of the camera crane is visible in the street during the San Francisco parade.
Near the end of the movie just after they start cutting up the Henriette for firewood in the middle of the ocean, a long shot shows some type of structure, possibly a camera platform, to the rear of the ship, screen left, sitting in the water.
During the engineer's pow wow with the Indians a modern ladder is clearly visible leaning on the front of the locomotive.
The scenes set in Yokohama, Japan, were shot in Kamakura, west of Yokohama, and Kyoto, far southwest of Yokohama. The film makes Kamakura's Great Buddha look like it's walking distance from Kyoto's Heian Shrine, but they are in separate regions of Japan.
As the train travels east across India, Passepartout looks out the window at the setting sun. The sun would have been to the west, at the rear of the train, not north, the direction from the window.
As Phileas Fogg and Passepartout arrive in India aboard the Mongolia, several traditional fishing boats are seen pulling into port. One of those boats is clearly flying the flag of Pakistan, not India.
Near the end of the movie, the Henrietta is traveling east to England across the Atlantic, yet the ship heads into the setting sun.
On her way to Hong Kong, the S.S. Rangoon passes the Royal Palace at Bangkok. However, that would've been impossible. Even in 1872, the Chao Phraya River was much too shallow for ocean-going vessels of S.S. Rangoon's size at that spot. Bangkok's port is situated some 15 kilometers downstream near the river's estuary, where the water is deep enough.
Fogg doesn't realise until arriving back home in London that he has gained a day by crossing the date line. Surely during everything that happened after that, including all the USA scenes, he would have noted local time as it was crucial to the whole challenge . And surely any tickets purchased would have been dated.