When in Newt's case for the first time, Newt goes from wearing his jacket, vest and tie, to his vest and loose tie, to just his blouse and loose tie, back to his vest and tie again in just a few shots.
When Graves comforts Credence, he puts his hand on the back of Credence's head, then moves it to the front. In the next shot, the hand is on the back of his head again.
After bringing Jacob into his suitcase, Newt opens the door to his shed and beckons for him to follow him. In the next shot, Jacob opens the door a second time, even though it wasn't heard closing.
Just before entering Newt's suitcase, a spot is visible on Kowalski's shirt (precisely on his left shoulder). As the sequence goes on, the spot disappears.
When Jacob is showing the bank manager his suitcase of cakes, the cakes are at first a bit tumbled about, unsurprising due to the case's rather rough treatment up to that point, and are rather piled up on the viewer's right hand side of the case. After a cut, the cakes' arrangement within the case change. No more piles.
Manhattan didn't allow overhead wires, so streetcars used a conduit (an electrified third rail situated in a slot between the rails) to get electricity. Though the streetcars are correctly depicted lacking trolley poles, the conduit is not present.
City Hall subway station is situated in a turning loop and only has one track, and not two as depicted.
Newt has a suitcase which houses animals, namely Dougal who is always trying to get out. The suitcase has a special switch that when it opens, shows clothing and personal items. This switch is never used to prevent Dougal from escaping except when Newt is going through customs at the port.
When Newt chases one of his creatures through Central Park, the park is covered in snow and people are ice skating on a frozen pond. At any other time directly before or immediately after this scene and throughout the movie, there is no snow anywhere, and people are dressed for moderate weather.
Every man in the movie wears a hat when outdoors (common dress for 1926), except for the three chief male characters - Newt Scamander, Jacob Kowalski, and Percival Graves, who never ever do. While Newt and Graves are wizards, whose fashion sense can differ from that of Muggles, Jacob does not have this excuse. However, Jacob is quite socially awkward.
When the Immigration Officer in New York demands to see the contents of Newt's case, Newt activates a "Muggle Worthy" mechanism that hides the case's magical contents. When the officer opens the case, everything looks neatly arrayed as if Newt had just packed it--despite the fact that Newt had held the case vertically until he set it on the inspection table. An Immigration Officer would be accustomed to seeing the loose contents of a case that was held vertically having slid down to the bottom (now back) of the case--especially heavier items such as a watch or a magnifying glass.
And this is probably the reason why the officer still looks a bit baffled by the contents of the case.
And this is probably the reason why the officer still looks a bit baffled by the contents of the case.
When Tina takes Newt to the Wand Registry Office at MACUSA, the nameplate on her desk says "Queenie Goldstein". However, if one looks closely in a shot of Newt standing in front of the desk while Tina searches for a form/quill, on the other side of the desk (facing towards Tina) is a nameplate that says "Porpentina Goldstein" (Tina's full name).
In Mary Lou Barebone's initial speech at the protest rally, she refers to "the wireless" as one of the marvels of modern technology. That is the British term; a speaker in New York City in 1926 would have said "the radio."
In the smashed subway, near the end of the film, Newt kicks a brick which is obviously made of foam.
After the battle in the subway, as American President Madame Picquery is walking away with the Aurors, she turns and asks "Is that No-Maj still here?" in Carmen Ejogo's distinct British accent.
In the MACUSA Assembly Hall, obvious CGI incrustation when Newt gets out of the case, even in the next shot when he is still seen exiting though the case is not seen which reveals that it was a longer shot, which start was cut when editing or they would have filmed him on site.
In the scene where Tina interrupts Seraphina Picquery and the Aurors, there is a map that displays time zones and state boundaries; Michigan, Ohio, Indiana, Kentucky, and Tennesee are in the wrong time zone.
When Senator Shaw is speaking at the dinner party, the US flag to his right has offset stars like the present 50-star flag has. In 1924 the flag was a 48-star flag where the stars were in even rows.
When Scamander arrives in New York, the Immigration officer takes his passport then turns it sideways to examine it. The old blue British passport did not have pages that were oriented sideways.
The torch of the Statue of Liberty is shown in its current design of gold covered copper. That version was installed in 1985. The original torch (currently on display in the museum) was a copper framework with glass and was illuminated from within, having been in that form since a major reworking in 1919.
At the scene of a building collapse a cop tells the crowd it isn't a gas explosion because there is no smell of gas.
But natural gas is both odorless and colorless, adding odor to the gas was globally adopted after the New London School explosion of 1937.
So even if there had been a gas leak or explosion, the cop would not have been able to smell gas.
The customs official says that Newt had recently been to Equatorial Guinea. It was known as Spanish Guinea until its independence in 1968.
While the main characters are walking under the elevated line, the train passing overhead is on the left track as if it would be in England rather than the track on the right side as it would be in the United States.
When the obliviating rain pours down, there are already several papers visible that detail the destruction caused by Credence even though the entire event happened just moments before. Papers are not printed and distributed that fast.
According to the rules of wand ownership JK Rowling explained in the original Harry Potter series, a wand can change its allegiance to a new owner if the previous owner has been disarmed. In the 1920's, Grindelwald was the Master of the Elder wand. When Newt managed to catch and contain "Graves", Tina disarmed him, which should have made her the Master of the Elder wand from then on.