Gilliam: 'Ledger was clean'

British moviemaker Terry Gilliam is still fighting reports his pal Heath Ledger was experimenting with drugs at the time he died a year ago, because the actor was "clean".

Ledger died from an overdose of prescription drugs he was taking to try and cure insomnia, but many suggested he was on much stronger narcotics, and the speculation continues as the anniversary of the tragedy approaches.