Some drug companies want to make sure filmmaker Michael Moore gets lots and lots of attention - especially if he sets foot on their property.

The pharmacy corporations are telling employees to be on the lookout for the man with the well-known baseball hat, saying that he may be filming a documentary on the health care industry, including insurance companies, HMOs, the Food and Drug Administration and drug companies.

A spokesman for Pfizer said the company has posted a Moore warning in its online newspaper.

Five other drug companies have issued similar warnings to their employees, too.

Moore’s targets have included General Motors, the gun lobby and President George W. Bush.