Actor Eric Bana is helping to spread the popularity of bands from his native Australia, by taking their music to his movie sets.

The 37-year-old TROY star is convinced his efforts have started to pay off - he even introduced director Steven Spielberg onto one of his favourite rock bands when they filmed new movie Munich together.

He says, "I make it a mission to take Australian music with me when I'm on films. I'm the official Hollywood ambassador for Powderfinger. Spielberg loves them now."