Pifias

When Diana is racing away from the gala on a horse back to the village, the blue dress she was wearing flies off, leaving her in her Wonder Woman costume. However, if she had been wearing her costume under the dress at the gala, it would've easily been seen peeking out the top of the dress, since the dress is much lower cut across her chest than her costume is.

After liberating the town of Veld, Diana and Steve are seated in the town square with mugs of beer. Diana has a beer in her left hand and sets it on the fountain. When Steve stands to ask her to dance, she is holding the beer in her right hand and sets it down again.

When Diana and Steve are having a meeting with the generals and it is discovered Diana can read Dr. Poison's book of formulas, there is a shot where Diana is missing a button on her overcoat. In the very next shot, it is back on but askew, and in the shot after that it is back in alignment with the other buttons.

Throughout the movie, Diana's wristbands appear/disappear without any explanation.

While standing outside Cafe Buvette, Diana and Steve go from no cold breath to cold breath (visible vapor), to no cold breath again.

In the credits, the word "Cavalry" (horse-bound soldiers) is spelled "Calvary" (Latin word for skull, name of the hill of crucifixions). Big difference in meaning, but a common spelling error.

When Diana crosses No Man's Land, the rate of fire of the German machine guns is much too high. The standard 08/15 Spandau MG would fire about half that many rounds per minute, just like the one in the armored car she flips a few minutes later.

In the trenches Steve says the battalion has been there a year. British battalions were put forward into the front trenches for a few days at a time then sent to the rear for recovery and rest. By the end of the War in 1918, the fighting is much more mobile. In German advances around April 1918 (Spring Offensive) British and French positions were pushed back several miles. And after July the Allies, reinforced with US troops and using improved tactics and tanks, have been advancing miles at a time in what is known as the "Hundred Days Offensive".

General Erich Ludendorff was head of the German Imperial General Staff. It was he, not Paul von Hindenburg, who in the Fall of 1918 advised Kaiser Wilhelm II to accept the armistice as the German army could not stop the combined Anglo-American army from taking Berlin. The film probably changed this because Hindenburg's name would be too well known. At the end of WWI, Hindenburg was still a field commander.

Ares tells Diana "only a god can kill another god". In Greek mythology, a god can be injured but not killed, even by another god. The bedtime story Hippolyta tells Diana has Ares killing his fellow gods, stopped only by a dying Zeus, who zaps Ares off of Olympus with a lightning bolt.

In the initial battle with the Germans on the beach all of the Amazons are on top of a cliff, from which they are easily able to reach and kill many Germans who are still in their boats. Yet they give up the high ground from which they can safely and easily pick off the Germans. They then engage in hand to hand combat on the ground with enemies who clearly have superior weapons. For a group of warriors who have spent their whole lives training and fighting they would know that giving up their strategic advantage would be foolish and put many of their lives at risk. It could be reasoned that they gave up the high ground because Diana was down on the beach, alone with a stranger. They knew Diana's secret and protecting her would have been their priority, not their own safety.

By November 1918, the war had become very mobile, and while elaborate fixed defenses still existed, "No Man's Land" was still a shell-blasted wilderness; the Allied troops' greatest problem was dealing with the Germans who dug new trenches every evening.

When Diana and Steve are sailing to London, they both fall asleep near Turkey (where Steve's plane was shot down) and wake up, seemingly the next morning, in London. Not only would an unhelmed sailboat almost immediately drift off course, a sailboat trip from the Eastern Mediterranean to London would take several weeks. Arriving in London, Steve says "We caught a ride." The boat is tied to a steamer and is being towed. There is no reference in the movie as to the location of the Amazon Island (in the comics it is in the Atlantic). This could be a enchanted boat, possibly over 2000 years old, so may travel by its own means and travel where it needs to go while they sleep.

In any pre-industrial society, ceramic jars would be much too valuable for mere target practice when you could just as well use much cheaper items like bales of hay or straw. However, they might well be cracked, contaminated, or otherwise unusable.

When Diana is using an iPad and typing on a Bluetooth keyboard, a virtual keyboard is visible on the screen. In reality, when such a keyboard is connected, the virtual keyboard is automatically hidden.

While this is true, Diana was typing a message to Bruce the audience needed to read.

Maru's book should have been damaged severely from being under water, despite it being in a leather pouch, but Steve hands it to Darnell in pristine condition.

The "Ottoman" texts has nothing to do with the gases and stuff. They are just words that make no sense together. And the drawings between the words are meaningless. Some of the words in the book translate as: "animals", "situations", "right", "dog", "human", "hundred", "me", "there is", "feelings".

When Diana is dancing at the gala with the sword in the back of her blue dress, the hilt of the fake sword leans far to the right when Steve is with her, showing that there is no sword at all, just the hilt.

Wonder Woman's armoured boots have wedge heels in close-ups and in peaceful scenes, but are flat during fights and stunts. This is especially obvious during the start of the occupied town fight: there are some close-ups of her obviously high-heeled boots deflecting bullets, immediately followed by slow-motion scenes of her flipping and jumping in flat-soled boots.

When Diana questions Hippolyta about where the god-killer weapon is kept, tan lines from sunglasses are visible on Hippolyta's face.

In the French village scene, there are modern vehicles visible in the background.

The song sung by Charlie in the village cafe, "I'll Walk Beside You," was written in 1939.

When the party lands in Belgium, one can see a river boat named after Édith Piaf, who was only 3 years old at the time.

Steve's motorcycle is a period-correct machine, probably a Douglas or a Triumph, with a drive belt made from leather links. The scene cuts to him riding through a forest on a much faster, much more modern machine with telescopic suspension forks, which weren't invented until 1935 by BMW for the R12.

When Steve gets dressed after his bath, we hear the sound of a zip. During WWI the zipper was a new invention and only being used in American uniforms, not in other nations uniforms or civilian clothes, and Steve is an American serving in British intelligence.

In Veld, you hear some locals comment on Wonder Woman's destruction of the church tower. They do it in Flemish, but not with a West-Flemish accent (as spoken by some at the time in Hazebrouck).

The license plate of the truck which drives past Diana and Steve when they arrive in London begins with an "L". A few moments later, a car drives past them with a license plate beginning with "LF". When the British Government issued vehicle license plates in 1903, the letters "I" - "Z" were designated to Ireland. Those vehicles' license plates should begin with "A", for "London".

Diana doesn't know what a "secretary" is, even though she (like all of the Amazonians) is fluent in hundreds of languages.

The Gods charged the Amazons with keeping Ares in check, yet none of them know about World War I.

Maru conducts her top secret experiment at the factory in full view of everyone there.

Given where Steve crash-lands, there is no way that any pieces of the plane would have floated to the edge of Themyscira's protective bubble to be discovered by the Germans minutes later.

After Diana reads from Maru's book, no one in the room shows any interest in what else is in the book.

Diana at age 8 speaks in a Scottish accent which changes to an English accent to almost no accent to a "Themysciran" accent.

Diana opens Maru's book near the middle instead of at the beginning.

The English subtitle during their multilingual "smack-down" has Sammy "say" to Diana in Mandarin: "I know Chinese, too, tricky girl". Although Mandarin is often referred to as 'Chinese' by laypeople, this is not a proper alternative and someone like Sammy should definitely not be making this mistake.

Steve tells the Amazons that 27 countries are involved in World War I, with 25 million dead. World War I involved 32 countries total, with over 16 million dead.

Hippolyta tells Diana that the Amazons were created by the gods to fill men's hearts with love and bring peace, then she says the Amazon queen lead a revolt to free her people from bondage. Hippolyta never explains how or why the Amazons were in bondage.