>>78505111Digimon : The Movie was made from 3 movies.
Digimon Adventure, which is essentially episode 0 of the series featuring Parrotmon and Greymon.
Our War Game! Which features Omnimon and Diaboromon.
and Digimon Hurricane Touchdown / Supreme Evolution! The Golden Digimentals which features the first appearance of Terriermon and Cherubimon.
To make the American Digimon : The Movie, they cut out some of the first one, around 1/2 of the second and tried adding plot elements to connect them. They also changed the OST to have the pop songs rather than the normal ones.