The Conversation Continues ...
The live portion of our online discussion has now concluded -- click here to read what our viewers, Dave and PD experts had to say so far.
But we still want to hear what you have to share, too. Click here to post your comments, questions and stories. Dave Iverson and PD experts Ole Isaacson, Michael Zigmond and Bill Langston will check back periodically through next Tuesday, February 10 to answer your queries about PD and the film.
Dave will also be participating in a live chat at washingtonpost.com at 11 a.m. ET on Wednesday, Februrary 4. Click here to go to the Washington Post chat site.