Ashton Kutcher was secretly hoping he wasn't getting "PUNKD" co-starring alongside one of his favorite idols in a new movie.

The actor was terrified of embarrassing himself in front of his screen idol, Kevin Costner.

His legacy will go on, and Steve Irwin may soon become immortalized through the big screen. Talks are already underway for Russell Crowe to play the "Crocodile Hunter" on a movie based on the wildlife enthusiast's life.

The Oscar-winning Australian actor - who has repeatedly spoken of his affection for friend Steve after he was tragically killed, aged just 44, by a stingray - is in talks with Universal Studios about making a biopic.

Thousands of people paid their respects and said their final goodbyes to their beloved wildlife enthusiast, Steve Irwin, on Wednesday morning. A public memorial service was held in honor of the "Crocodile Hunter" in Australia at the place he loved and cherished the most.

Over 5,000 people attended the ceremony, which was staged in the "Crocoseum" at the wildlife expert's Australia Zoo, in Queensland, and broadcast live to Australia, Asia and the U.S.