Complex sentence: Disney Australia was becoming well known for 2D animation, they were actually the last Disney owned 2D animation studio, according to Steve Trenbirth, who left Disney to form his own company, Mad Cow Pictures two-years before the closing of the Australian Animation Unit.
Split into simpler sentences: Disney Australia was becoming well known for 2-d animation, they were actually the last Disney owned 2-d animation studio. This according to Steve Trenbirth who left Disney to form his own company Mad Cow Pictures two-years before the closing of the Australian Animation Unit.