Terry Gilliam to direct HBP?

The Internet Movie Database is reporting that Terry Gilliam will be directing the sixth HP movie, Harry Potter and the Half-Blood Prince. Please regard this as rumor until we receive further confirmation. Gilliam is most commonly known for his work with the Monty Python series. Thanks to those who e-mailed!

UPDATE: IMDb has now removed this information from their HBP movie page, indicating that nothing has been confirmed.

UPDATE #2: Thanks to WB for letting us know that no one has been signed to direct Half-Blood Prince.