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Westminster Seminary's site has a Q&A page, resources for Small groups, youth, a discussion blog, and a media center with audio/video clips of Pastors and scholars responding to questions here.
Bible.org has a plethora of stuff dealing with using the movie as outreach, personal study resources, and Church History background on some of Dan Brown's claims here.
The Faithful Reader has compiled 11 authors of the Da Vinci refuted books in an author's roundtable here.
Dallas Theological Seminary has a video of a roundtable with Darrel Bock here.
Nicene Creed
Christian History Corner Breaking the Da Vinci Code
A Testament is Born
The Reliability of the Gospels
Why the Lost Gospels were Really Lost