LOS ANGELES, Calif. -- Toxicology reports are still pending in the death of Brittany Murphy, but some believe a lethal mixture of prescription drugs led to the sudden death of the 32-year-old actress on Sunday.

'I believe that Brittany Murphy's death will prove to be essentially the same as the deaths of Anna Nicole Smith, her son Daniel Smith, Michael Jackson and Heath Ledger,' Dr. Cyril Wecht told Access Hollywood in an interview on Tuesday.

LONDON, England, U.K. -- Heath Ledger's final film, 'The Imaginarium of Doctor Parnassus,' premiered in London to a star studded audience on Tuesday night.

Jeremy Piven, La Toya Jackson and 'True Blood's' Stephen Moyer were among the stars who stepped out to see the film, which Ledger was working on at the time of his death.

NEW YORK, New York -- Michelle Williams has opened up for the first time in over six months about her life with daughter Matilda following the 2008 death of Heath Ledger.

In a new interview for Vogue's October 2009 issue, Michelle revealed that Heath's death in January last year brought a heavier paparazzi presence on their lives.

LOS ANGELES, Calif. -- Heath Ledger's spirit rocks on in the music video world.

Nineteen months after Heath Ledger's sudden passing, his directorial debut of Modest Mouse's music video for 'King Rat' has been released online at WeAreTheMasses.com. The song is a bonus track from their 2007 album, 'We Were Dead Before the Ship Even Sank.'