KEY POINTS:
For his demented reinvention of Batman villain the Joker, Ledger became only the second actor ever to win posthumously, his triumph coming exactly 13 months after the Australian actor's death from an accidental overdose of prescription drugs.
His Oscar for the Warner Bros. blockbuster was accepted by Ledger's parents and sister on behalf of the actor's 3-year-old daughter, Matilda.
Did Heath Ledger deserve an Oscar for his portrayal of 'The Joker'? Here is a selection of Your Views:
