Heath LedgerA video has emerged showing Heath Ledger at a drug-fuelled Hollywood party, talking about his own drug use.

The video, shot at a party at Chataeu Marmont in Los Angeles, dates from around January 2006. Although Heath isn’t showed taking any drugs in the clip, people with him are seen snorting cocaine and tables around the actor are strewn with drug paraphenalia.

At one point, Heath is heard saying: “I’m going to get so much s**t from my girlfriend [for being here]. We have a baby together… Matilda, Matilda Rose. I shouldn’t be here at all.”

He then spoke of his drug use, saying: “I used to smoke five joints a day for 20 years.”

A source close to the late actor told the New York Post that the video was filmed at a really bad time for Heath - just as his fame was skyrocketing due to the critical success of Brokeback Mountain: “He was hanging out with a bad crowd. He wasn’t cleaning up his act. He was making absolutely no effort … He was really into heroin. He wasn’t sleeping or communicating with anyone.”

According to Us Weekly, two months later, his then-girlfriend Michelle Williams drove him to Promises Treatment Center in Malibu, urging him to check into rehab but he refused, pledging to give up by himself. While he initially stayed off the partying scene, he was eventually pulled back in and another year later, his behaviour is became too much for Michelle.

The New York Post’s source explained: “She couldn’t take it any more. Heath wouldn’t show up for two to three days, and all of a sudden he would show up on her doorstep, an absolute wreck.”

“He was partying, doing drugs. She didn’t like the company he was keeping. She gave him an ultimatum … and threatened to get custody of the girl. He wanted to make it work, but it was this scene he was wrapped up in. Was he an addict? Yeah.”

“At the end of the day this is really tragic, he was a nice guy. I first met him in 2002. He was scared about the whole Hollywood thing … I don’t think he realized how crazy it was going to be. So many people wanted a piece of him.”

Heath’s body was found at his SoHo apartment last week and medical examiners are awaiting the results of toxicology tests before announcing the likely cause of death.