The Dark Knight star Eckhart, who is currently visiting Australia to film I Frankenstein, is scheduled to appear as the event's special international guest this weekend.
According to the Herald Sun, Australian TV star and model Zaetta walked the 'chequered' carpet at the Australian Grand Prix's official launch party at Club 23 last night (March 14).
Accompanying her was music mogul Andrew McManus, who split from his wife Jacqueline earlier this year.
Radio presenter Fifi Box ended up swimming in the Albert Lake at one of the Formula 1 launch events after she tried to push in co-host Jules Lund, but he dragged her in with him.
Other celebrities attending Australian Grand Prix events included cricketer Shane Warne, former Miss Universe Australia Jesinta Campbell and footballer Harry Kewell.
Rapper Flo Rida recently revealed that he is scheduled to perform at the Sidetracked Music Festival at the Australian Grand Prix.
He said: "All my Australian fans have already been hitting me up on Twitter and the hospitality is amazing down there. I can't wait to make it a party."
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