Brittany Murphy at Mercedes-Benz Fashion Week Fall 2008 - Matthew Williamson - Outside. New York City, USA - 05.02.08

It was reported the actress was ditched from her role providing the voice of the animated fairy, and replaced by 19-year-old Mae Whitman.

But Disney executives say Murphy left the project because of scheduling problems.

A representative tells OK! magazine, "When John Lasseter came on board, the schedule changed, and the new schedule didn't work for her."

Source: WENN