Gordon Gekko turns his back on greed for the FBI

Michael Douglas as Gordon Gekko in 'Wall Street' (Rex Features)

The FBI has enlisted an unlikely ally in its fight against insider trading and securities fraud: Gordon Gekko, the villainous executive from 1987 movie Wall Street, who told an audience of potential investors: "Greed, for want of a better word, is good."

Now, Michael Douglas, who won an Oscar for the role, is appearing in a TV commercial supporting the bureau's crackdown on financial crime in New York. This presents the tantalising thought of other movie villains repenting their sins for a suitable cause. Might Alan Rickman – aka the Sheriff of Nottingham – be persuaded to campaign on behalf of the #Occupy movement? Or could Colonel Nathan Jessup of A Few Good Men – as played by Jack Nicholson – join Lady Gaga to oppose Republican calls for restoration of the "Don't Ask, Don't Tell" policy on gays in the US military? "Santorum, you can't handle the truth!"