Yes. Look at http://link.GlobalGuideline.com for basic reporting facilities.

For more advanced reporting, I recommend hooking up a professional reporting package, such as Crystal Reports, and use ODBC to access the MySQL database. You can do a lot through the Query page of Bugzilla as well, but right now Advanced Reporting is much better accomplished through third-party utilities that can interface with the database directly.

Advanced Reporting is a Bugzilla 3.X proposed feature.