Heath Ledger HLEDGER022407_01_X17.jpg

Heath Ledger's parents and sister Kate are confirmed to attend the world premiere The Dark Knight tonight, according to Australia's Herald Sun. The newspaper reports that the Ledger family have flown in from Heath's hometown of Perth, and described their journey as a "bittersweet experience."

Ledger has already been receiving Oscar buzz for his role as the Joker, and numerous movie critics are predicting that the latest Batman installment could earn somewhere between $130 to $150 mil in it's opening weekend.