Funnyman Robin Williams still attends weekly Alcoholics Anonymous (AA) meetings, four years after checking into rehab.
The comedian has long battled a dependence on alcohol and relapsed in 2003 while filming The Big White in Alaska.
He checked into rehab three years later after a family intervention and has stayed away from booze ever since - but Williams still attends AA sessions to keep him focused on sobriety.
He tells Britain's Guardian newspaper, "(I) have to. It's good to go."