Carrie Fisher snorted cocaine on the ''ice planet'' set of 'Star Wars: The Empire Strikes Back' in 1980.
The actress - who portrayed Princess Leia in the first three movies of the George Lucas-directed sci-fi franchise - snorted the drug with others on the set of the 1980 film, despite not being a fan of the substance.
She said: "We did cocaine on the set of 'Empire', in the ice planet.
"I didn't even like coke that much, it was just a case of getting on whatever train I needed to get high."
She told AAP: "Slowly I realised I was doing a bit more drugs than other people and losing my choice in the matter.
"If I'd been addicted to booze I'd be dead now, because you just go out and get it."
Carrie may be best known for her role in the 'Star Wars' movies, but she has since starred in a number of successful projects, including 2003's 'Charlie's Angels: Full Throttle' in and 2008's 'The Women' alongside Eva Mendes and Jada Pinkett Smith.