Goofs

In the close-up of Tiana as she walks back to the table, her earrings disappear.

When Tiana is debating whether or not to kiss the frog, a portrait on the back wall keeps disappearing and reappearing.

During the song "Friends on the other side", Dr. Facilier spreads the cards from right to left. After a cut to Prince Naveen's face, the cards have switched directions as if spread from left to right, allowing him to flip them over the way he did.

When Lawrence is second guessing being Naveen (right after Tiana's frog transformation scene) Facilier's cane disappears when he is looking with Lawrence into the mirror.

The picture Tiana's father writes on says 'Tiana's' until she walks to the balcony when it changes to 'Tiana's Place'.

When the frogs are at Mama Odie's they sit on the edge of the bathtub full of boiling gumbo without any problem. The gumbo is in an old fashioned cast iron tub and the edge would have been much too hot for them to touch, much less sit on comfortably,

Louis is established to be an alligator in the film. But when an alligator's mouth is closed, its teeth do not show out like a crocodile's. In the shots where Louis's mouth is closed, his teeth are showing.

On Mardi Gras, as the riverboat carrying Tiana and Naveen approaches New Orleans, the moon is full. This is impossible. There are approximately 29 days between full moons. The date for Easter in Western Christianity is calculated as "the Sunday following the full Moon which falls on or after the equinox." Easter will always be at most 7 days after a full moon. Mardi Gras is 47 days before Easter, and will always occur 11 to 18 days after a full moon. Mardi Gras will fall within four days before or after a new moon. In 1926--the year in which the film is set--Mardi Gras is on February 16, the new moon is on February 12.

Laws banning interracial marriage were not repealed in Louisiana until 12 June 1967 by Loving v. Virginia so Naveen's plan to marry a rich white heiress could not have come to fruition as he legally could not wed a white woman. This film is set in the aftermath of WWI during the Roarin' Twenties.

Two Fingers throws fistfuls of knives at Tiana, but if he only has two fingers then he shouldn't be able to hold them.

Tiana is left-handed, but sometimes uses her right hand for writing and kitchen work. For much of European and American history, society considered using the left hand to be sinful or unnatural, so "lefties" often felt compelled to use the right hand in polite company.

On several occasions (particularly in "Almost There" and at the ball), there are numerous people either drinking or holding glasses of wine or champagne. This movie is set primarily in the 1920s. The possession and sale of alcohol in the United States was illegal between 1919 and 1933, because of the 18th Amendment (Prohibition), though Prohibition was widely disregarded, especially in New Orleans.

Lawrence gets his head stuck in a sousaphone but Naveen calls it a tuba. He's a musician and a huge jazz fan so would surely know the difference between the two instruments.

A Sousaphone is from the Tuba family so while technically two different instruments Naveen was correct since they are from the same family.

The fireflies consider themselves Cajun, but play Creole music. Human definitions and divisions are not required to apply to insects.

When Naveen is mincing a mushroom for Tiana, you can see that his fingers are clearly in the way of the knife, yet he does not cut himself when he slices through the mushroom.

The newspaper at the start of the movie had different titles but the 'text' it's the same for all of them. It's basically the news of Prince Naveen arriving to New Orleans, that also have some parts missing. Also, the date on the front page of the newspaper (the one with Naveen) says 'FRIDAY, APRIL 25, 1926' and the price is'5 CENTS', while the other side says 'FRIDAY, JULY 16, 1926' and '2 CENTS'.

At the beginning of the movie, Charlotte gets into her father's car and reads the title of the front page (the news about Prince Naveen), but then opens the newspaper to actually read more, when the story it's right there on the first page. There's nothing more inside, at least not about Prince Naveen.

There are at least two references to "Bananas Foster," a dish that wasn't introduced until 1951.

During the opening musical number, Big Daddy holds up a newspaper while in the car revealing a number of headlines including "Ford Corporation Introduces Trimotor" and "Gertrude Ederle Readies to Swim the English Channel." Neither of these events, nor Mardi Gras for that matter, took place on the newspaper's supposed date of April 25th 1926. The Trimotor first flew in June 1926, Ederle wouldn't swim the English Channel until August 6th, and Mardi Gras in 1926 fell on February 16th.

In the opening scene, someone on the streetcar is reading a newspaper with the headline "Wilson Elected" which implies the date is November 1912 (if it were 1916, the headline would have said "Reelected"). This contradicts the year on Big Daddy LaBouff's newspaper, and it also contradicts the time of year in which Mardi Gras takes place (February or March).

When Lou tells Naveen "No." after listing the many threats of the bayou, it does not match up with his lips moving on the screen. The sound is just a little bit late.

Real locations from New Orleans are used in the movie, however, they are further apart than shown in the film.

Specifically: The church Lawrence runs into after falling off the Mardi Gras float is the St. Louis Cathedral on Jackson Square of the French Quarter. Ray is chased from the cathedral by voodoo spirits, flying a short distance into the clearly labeled "Lafayette Cemetery No. 1" in the Garden District. Tiana joins him and can see the cathedral's clock tower from the cemetery.

In reality, these two locations are in different districts, with the Business District between them, and are over 2.5 miles (4km) apart. Additionally, the cathedral cannot be seen from this cemetery.

Tiana asks Naveen who is the prince who was dancing with Charlotte, indicating she knows there is a "fake" Naveen. Yet, when she sees the fake Naveen on the float with Charlotte, she thinks he has betrayed her. She should know that that is not really Naveen, especially as she is still a frog and Mama Odie told them that they would both change back when the spell was broken.

It is established that Tiana turns into a frog when she kisses Naveen because she is not a princess. However, Charlotte does not turn into one when she kisses him after midnight, meaning she is no longer princess of Mardi Gras.

Tiana says "There is no way I am kissing a frog, and eating a bug on the same day." However, it is not the same day she kissed Naveen but rather the day after.

After Juju adds the Tabasco sauce to the gumbo, Mama Odie notices the difference in the taste without stirring it in.