The Hollywood legend, who won a Best Actor Oscar for his portrayal of greedy banker Gordon Gekko in the 1987 classic, will speak to businessmen at the investor event held by CLSA - Asia's leading investment group.

According to organisers, the star will speak about ""filmmaking, nuclear abolition and the prevention of small arms proliferation"".

CLSA spokeswoman Simone Wheeler says, ""We try to present newsmakers to our clients - people who are shaping the news or have a particular cause. We don't expect (Douglas) to be speaking about finance or business.""

Previous speakers have included former U.S. vice-presidential candidate Sarah Palin, ex-U.S. president Bill Clinton, and Archbishop Desmond Tutu.