Complex sentence: This film's formerly Walt Disney Animation Australia change DisneyToon Studios working title was "The Little Mermaid III", and it was originally scheduled for a mid- 2007 release.
Split into simpler sentences: This film's formerly Walt Disney Animation Australia unit, DisneyToon Studios. The film's working title was "The Little Mermaid III", and it was originally scheduled for a mid- 2007 release.