In San Francisco the 'ladies of the evening' jump off a wagon full of beer barrels marked 'Pabst Blue Ribbon.' Pabst was called 'Select' until 1882 when, due to their practice of tying a blue ribbon around the neck, it was frequently asked for as 'that blue ribbon beer.'
When the tall ship US Grant arrives in San Francisco, you can see the radar installations on the mast which did not exist in 1872. The vessel is a stock shot of the contemporary 1950s Japanese training ship 'Nippon Maru'.
When Fogg finds Passepartout at the circus in Yokohama, Passepartout races to him causing the collapse of a human pyramid. The top man of the pyramid grabs the canvas background, pulling it down, revealing the back of the stage and lighting. That type of stage support structure was not used in Japan at that time, and the overhead lights are modern lamps that were not available in 1872.
The Paris "Gare du Nord" is seen in the movie as it was in the 1950's, blackened by decades of street traffic, Paris chimneys and steam engines. But in 1872, it was just built and should have appeared clean and shining.
At the beginning of the film we are told that it is 1872 and shortly afterwards we see the Welsh Guards on parade (you can tell by the layout of their buttons - two rows of five). The Welsh Guards are the most junior of the Guards Regiments and weren't formed until 26 February 1915.
When the train stops after the American Indian raid, the sign on the train station says "Fort Kearney", and the station manager mentions a local train that will run to Omaha, establishing the location in Nebraska. In 1872, the sign should have read "Kearney Junction." Fort Kearny (correct spelling) was shut down in 1871. The second "e" was added to the city of Kearney, Nebraska's name due to a postal error, and it has since remained with that spelling.
At the end of the film at the Lloyd's of London offices, Scotland Yard's Inspector Hunter explains that Fogg and the chap who robbed the bank of England are the same person. He also states that Fogg and his party took the SS Henrietta bound for Caracas, Venezuela. After confirming that Fogg has bolted, he states that the Henrietta is going to Central America - but Caracas is not a seaport and Venezuela is not in Central America.
When the train is being attacked by the Indians and Buster Keaton says they might of gotten the engineer and fireman, he also says they'll get out of the mess because the calvary are ahead, not the cavalry.
At the beginning of the movie when Passepartout is on his way to the employment agency on the high-wheel bicycle, a white horse comes up beside him and even next to him, but in the next shot, there is no horse anywhere nearby.
When Passepartout is in the San Francisco saloon, he sits at a table. While he is sitting there, a knife is thrown and lands on the table next to his hand. When the knife hits, it knocks over a glass of beer on the table but when we see the table a moment later, the glass is upright, still containing beer.
When we first see the SS Rangoon (approaching Bangkok), it has a white hull. But as the evening progresses, while Phileas Fogg is impressing Aouda with tales of his prowess at Whist, the hull inexplicably appears black in brief closeup scenes. A long shot of the Rangoon as it enters Hong Kong harbor reveals that the ship has, indeed, a black hull.
When the American train stops unexpectedly, for the pow-wow with the Indians, and again later, when the buffalo are stampeding across the tracks, the locomotive is shown behind the same cluster of bushes. (Incidentally, the railroad company 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 is trying to escape the Sioux Indians on horseback, his horse leaves a trail of dust. At one point, it is obvious that two scenes were filmed and spliced together as the dust pattern changes instantly. A large rock in the background provides a shadow to fully observe this.
When Inspector Fix and Passepartout are in the bar sitting down and talking, the inspector has his left hand on top of his walking stick with his right hand on top of his left. A moment later, his hands are reversed.
The scenes which supposedly take place in Yokohama, Japan, were in fact shot in Kamakura, west of Yokohama, and in Kyoto, far southwest of Yokohama. The film visually links Kamakura's Great Buddha with Kyoto's Heian Shrine (making it appear as if they are within walking distance of one another), though in reality the two locations are in separate regions of Japan.
When crossing the mountains in the balloon at high altitude, both Fogg and Passepartout are shown wearing light clothing and no gloves when opening the champagne. The air temperature around them would have been freezing, yet they exhibit no sign of being cold.
As they are getting ready 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 since the balloon would be above it.
The locomotive used for the American train sequence is named the Jupiter which was one of the locomotives at the Golden Spike ceremony. However this loco is a 2-8-2 freight engine with small drive wheels. The real Jupiter is a 4-4-0 passenger loco with large drivers. The loco used in the movie is powerful but slow and would never have been used to pull a passenger train on the prairie.
After arriving back in England it was discovered that they returned a day earlier than they expected because they crossed the International Date Line west to east and therefore gained a day. The date line is in the middle of the Pacific Ocean and they would have had many opportunities to learn the correct date before arriving in England. In fact, they had to know the correct date in order to cross the U.S. and sail across the Atlantic Ocean.
When Fogg and Passepartout are traveling in the balloon, the streamers at the bottom of the basket are fluttering behind them. Since a balloon moves with the wind, streamers generally tend to hang straight down or flutter randomly in the turbulence.
In all the 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 also 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. It is clearly visible that the lifting force, by a stage crane, is erroneously placed in the center through the appending gas valve. Had the sandbags on the basket actually contained sand, they would not have bounced around so lightly. Not to venture into details, but most of the flight behavior of the balloon is completely unnatural when compared to the behavior of a real aerostat under such circumstances.