This post is part of a feature in which he wonder whatever happened to some notorious financial felons. See all 17.

How does the head of one of Archer Daniels Midland's (NYSE: ADM) fastest-growing divisions, a virtual shoo-in to be the company's next president, end up embezzling $9 million dollars while simultaneously acting as an informant for the Federal Bureau of Investigation? And how does the highest-level executive to turn whistleblower receive a sentence much harsher than those of his co-conspirators despite pleas for leniency and clemency from everyone from the FBI and the Justice Department to congressmen, university professors, and even a baseball hall-of-famer?

Sounds like the stuff of motion pictures, doesn't it? And that's exactly what this true story will be in September of 2009 with the release of The Informant, a Warner Brothers film directed by Steven Soderbergh and starring Matt Damon as whistleblower turned felon, Mark Whitacre. The movie is based on one of several books written about the case.

When the FBI began an investigation of ADM in 1992, Whitacre admitted that he and other executives were involved in a multinational price-fixing scheme. For the next three years, he helped the FBI gather evidence. Despite that, however, Whitacre was convicted in 1998 for wire fraud, tax evasion, and money laundering. The sentence of more than 10 years in prison was considered excessive by many, given his cooperation with the investigation and the fact that he suffered from bipolar disorder (the pressure drove him to attempt suicide at one point). Whitacre served eight and half years, reportedly as a model prisoner. To this day, efforts continue to win a pardon for Whitacre.

This post was part of AOL Money & Finance's Best & Worst of 2007 feature. Voting has now closed and readers have chosen Oprah Winfrey as the most overpaid celebrity of the year. Be sure to let us know in the comments if you are pleased with this result.

Oprah Winfrey returns to our Most Overpaid Celebrity category after having lost the title to Paris Hilton last year. For 2007 she is joined by overpaid celebrities Madonna, George Lopez, and Russell Crowe.

Winfrey, Madonna, and Lopez all made the Forbes Celebrity 100, a ranking of Hollywood players by pay, influence, and popularity. Winfrey, of course, comes in at number one, both in terms of pay and power. Madonna's earnings placed her at number nine on the list, while Lopez came in at number fifty-one.

Forbes estimates Winfrey's earnings at $260 million last year, and her net worth in the area of $1.5 billion, making her the nation's wealthiest African American. She'll be adding two new reality shows to her media empire, which already includes a blockbuster daytime talk show, satellite radio show, magazine, and Broadway musical, as well as stakes in hit shows by Dr. Phil McGraw and Rachael Ray. The school for girls she founded in South Africa has drawn much media attention this year, and she's recently endorsed Barack Obama's presidential campaign. Winfrey has been called the world's most powerful woman, the most influential woman in the world, one of the most influential persons of the 20th century, the world's first black woman billionaire, and the greatest pop culture icon of all time. Can any mortal person live up to all that hype?