Abbie Cornish and Heath Ledger spent a week befriending drug addicts.

The Australian star - who starred alongside the late actor in the drug-fuelled romantic drama 'Candy' - decided the pair should take a proactive approach to the 2006 film and so spent seven days on the streets talking to heroin users.

Lindsay Lohan's father claims he knows who her drug dealer is.

Michael Lohan - who has alleged his actress daughter is addicted to prescription drugs - believes the 'Mean Girls' star is being targeted by a man who is aware of her reliance on legal substances.

Lily Cole says acting is like walking a tightrope.

The model-and-actress, who stars in new movie 'The Imaginarium of Dr Parnassus', says the secret to a believable performance is finding the right balance.

Heath Ledger used to confide his problems to Verne Troyer.

The late actor - who died of an accidental drug overdose in January 2008 - bonded with his 'The Imaginarium of Doctor Parnassus' co-star over dinner and amazed the 'Austin Powers' star with revelations about his life.

Lindsay Lohan's father claims she is addicted to prescription drugs.

Michael Lohan - who has a history of drug abuse himself - wants to help the 'Mean Girls' actress beat her reliance on legal substances as he's terrified she will end up dead.

Michelle Williams got over Heath Ledger's death by gardening.

The 'Brokeback Mountain' actress struggled to cope when her former lover - with whom she has a three-year-old daughter Matilda Rose - died from an accidental drugs overdose in January 2008 but gained strength to deal with his untimely passing after moving to a different property in New York.