The Little Mermaid

In the opening scene when King Triton arrives at the arena, Mickey Mouse, Goofy, Donald Duck and Kermit the Frog can be briefly seen in the crowd of sea-people as mermen when he passes over them.

During "Kiss the Girl", the fish swim up from a depth, but later, when Ariel and Eric fall out of the boat, they are shown in Ursula's ball standing in shallow water.

For the re-release in 1998, some of the international versions were entirely re-dubbed. It has been claimed this was due to a bureaucratic error, but the real reason for this action was because the international companies were unhappy with the scripts on the earlier releases and wanted to be more faithful to the original dialogue. Many international fans disliked the new dubs, especially in Germany, where several petitions were set up to restore the old dub on DVD (which actually resulted in Disney including the old dub on the 2013 DVD/Blu-ray release). Other countries affected by the change were France, Spain, Portugal, Denmark, Finland, Greece, Poland, Thailand, Japan and Brazil.

Edited from Pinocchio (1940)