KEY POINTS:
Heath Ledger's family and friends have described as grossly inaccurate a book which suggests he was mentally ill.
The Hollywood star was found dead in a New York apartment from an accidental drug overdose on January 22 this year.
The Ledgers issued a statement yesterday to distance his immediate family, close friends and associates from Janet Fife-Yeomans book Heath: A Family's Tale, published by Murdoch Books.
The book suggests Ledger may have suffered from bipolar disorder just as his estranged uncle Haydn Ledger does.
