A well-known documentary maker is asking consumers and corporate employees for stories about problems with the U.S. health finance system.

Michael Moore, the director of “Bowling for Columbine” and “Fahrenheit 9/11,” has posted a request on his Web site for health care horror stories.

Moore is appealing to consumers who have had trouble buying prescription drugs, paying hospital bills, persuading health carriers to cover operations or persuading doctors to treat them.

“If you have been abused in any way by this sick, greedy, grubby system and it has caused you or your loved ones great sorrow and pain, let me know,” Moore writes in his appeal to consumers.

“Oh,” he adds, “and if you happen to work for an HMO or a pharmaceutical company or a profit-making hospital and you have simply seen too much abuse of your fellow human beings and can’t take it any longer – and you would like the truth to be told – please write me.”