Some TV versions includes a longer version of the theme tune at the end.
ABC cut 15 minutes from this film for its 1986 network television premiere.
Some versions cut out the part where Freddie talks in Swedish to the guard.
A scene where Madison meets an elderly, ugly mermaid - the Sea Hag - who warns her of falling in love with a human, was filmed but dropped before the film was released. Short parts of this complex scene can be seen on the DVD.