Continuity: In the third segment of the movie we see Davis, Yolei, Cody and their Digimon playing on the beach. In the wide shot when we see all of them playing we see that Davi's Digimon is in his "rookie" form, Veemon. When they show a closeup of him and Davis together, Veemon is now in his "in training" form DemiVeemon. Then they show them all playing again and he is now Veemon again.

Deliberate "mistake": Some of the text in this movie is in English, but some is in Japanese. Most noticeable when Tai writes the letter to Sora.

Other: In the first segment of the movie, Kari is about two or three years old. And yet, she has an almost perfect vocabulary.

Factual error: When Tai calls Joe, he says, "He's the only kid I know who volunteers for summer school," indicating that it's Summer. But there's a calender on the wall that says March.