When Pocahontas is sitting at the king's table, her hair jewels disappear for a second, but then reappear.
When Pocahontas first arrives at John's house, John leaves to see King James, and her dress strap is on her right shoulder. When he leaves and closes the door, her strap has suddenly moved to her left shoulder. In the next shot of her, the strap is on her right shoulder again.
In the final battle on the ships, Ratcliffe appears behind Pocahontas through a flag. She's wearing her necklace. In the shot right before John Smith pulls Ratcliffe's cloak, her necklace has disappeared. When we see her again, it's back.
As Rolfe's ship sails into London, Pocahontas is at the bow, looking ahead, with her hair blown backwards. The ship is running before the wind, so her hair should be blown forwards, just as the sails are.
The bear they were baiting would not have had teeth. Those were usually pulled to prevent the risk of being bitten.
King James grew up in and was firstly King of Scotland. He would have not spoken in an English accent as depicted in this animated film.
Like the original 1995 film, this animated musical film has many historical inaccuracies about Pocahontas herself despite the story being entirely fictional.
During "What a Day In London", a character appears who is intended to be William Shakespeare. In reality, Shakespeare died on April 23, 1616; preceding Pocahontas's arrival in London by less than two months on June 12, 1616.
Ratcliffe is depicted alive in this film. In real life, Ratcliffe died in 1609, seven years before Pocahontas came to England with John Rolfe. The real life couple had a son named Thomas.
When Mrs. Jenkins is introduced to Pocahontas, she offers to "put on some tea". Tea is not known to have been drunk in England at the time the movie is set (it was introduced about 40 years later). Certainly it would not have been readily to hand in a typical English household.
Shakespeare is depicted getting the idea for the line "to be, or not to be," but the play "Hamlet" had already been written by the time Pocahontas arrived in London.
The Union Flag of Great Britain and Ireland is displayed, although this flag was only created in 1801 (nearly 200 years after the movie is set).
During the last fight scene, as John Rolfe says, "Who started the party without me?", the audio comes seconds before his mouth moves.