The critics have also started backing Ledger for a posthumous Oscar in their reviews of the actor's last completed film, The Dark Knight.
Los Angeles entertainment reporter Sam Rubin said on his KTLA-TV blog that Ledger's role as The Joker is 'amazing work', eports Daily Telegraph.
He said that Ledger 'gives a blockbuster performance' and 'will absolutely be nominated for an Oscar, and at this point in the year, Ledger is also a hands-down favourite to win it posthumously'.
Ledger, who died in January this year, will also receive a tribute at the end of the credits in the film. The film will release on July 18.
Text: ANI