Plot hole: When Charlotte kissed Naveen at the end, she should've turned into a frog as well because she was no longer a princess.
The Princess and the Frog (2009)
Ending / spoiler
Directed by: John Musker, Ron Clements
Starring: Keith David, Anika Noni Rose, Oprah Winfrey, Bruno Campos, Michael-Leon Wooley
Naveen is captured by the Shadow Man and his blood is extracted into a voodoo amulet. Ray tries to stop him, but gets squashed in the process. Tiana gets the amulet and smashes it. Without the amulet, the Shadow Man has nothing to pay back the Shadow Demons with and they drag him to hell. Naveen finds Tiana's friend Charlotte, who is a princess, and tries to get her to kiss him before midnight to break the spell (the spell can only be broken when Naveen kisses a princess). Tiana arrives and tells Naveen not to do it because she loves him. Charlotte then kisses Naveen so he and Tiana can be together, but it's too late - it's after midnight, so they are stuck as frogs. Naveen and Tiana are married and as they kiss, they are turned into humans (by marrying Naveen, Tiana is now a princess and the spell is broken). With Naveen's help, Tiana finally opens her restaurant, like she always wanted.
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Suggested correction: When ordinary people kiss a frog, they don't transform into anything. (Perhaps they die from infection after a few days.) Charlotte was just an ordinary person. Tiana was chosen. She wished upon the star. Naveen and the consequences of kissing Naveen were a result of Tiana's wish.
Suggested correction: How? She was no longer a princess.
Tiana turned into a frog because she kissed Naveen without being a princess, so Charlotte should have, too.
Tiana broke the talisman that the voodoo man had, thus breaking any more frog-turning spell. I know Mama Odie said that Naveen and Tiana broke the spell when they got married, but Dr. Facilier was still responsible for the spell in the first place, and he died, so there's that.
Prince Naveen: Excuse me, but your accent, it is funny.
Ray: I'm a Cajun, bro. Born and bred in the bayou! Y'all not from 'round here, are ya?
Prince Naveen: Actually, we are from a place far, far away from this world.
Ray: Go to bed! Y'all from Shreveport?
More trivia for The Princess and the Frog
Question: How did Tiana know that Naveen was going to marry Lottie? We don't find out until later that Lottie has to kiss Naveen in order for the spell to be broken and sure Lottie was attracted to Naveen but still, marriage wasn't mentioned so how did Tiana know? Did I miss something?
Answer: Naveen told Tiana about his plan to marry Lottie once they arrived in the swamp. After revealing that he's been cut off by his parents, he explains that he plans to regain his wealth by marrying her so that he'll inherit her father's prosperity.
Answer: Mama Odie tells Tiana and Naveen that Naveen must kiss a true princess in order to break the spell. Lottie is the princess of the Mardi gras parade so that would make her a princess and that would make it necessary for her to kiss Naveen and break the spell.
Tiana knew that Naveen was going to marry Lottie because Naveen tells her when they are running away from danger in the bayou. Naveen says 'when I marry Miss Charlotte LaBouff...' in an attempt to explain to Tiana how he intends to be rich again.
Naveen wasn't looking to marry a princess, just a "little honey whose daddy got dough", as said by the Shadow Man.