I just happened upon some helpful podcasts for filmmakers, screenwriters, and just plain ol' writers at Michael Wiese Productions on "BlogTalk Radio":
http://www.blogtalkradio.com/michaelwieseproductions
Michael Wiese publishes some excellent books. Apropos of a note on log lines, I recently posted a mini-rave review of one of them: Blake Snyder's Save the Cat!
I'm on the lookout for good podcasts by and for writers, so let me know of any you recommend. I like to listen to them, but I'm also looking for helpful links to list in my forthcoming iBook, Podcasting for Writers.
(My own latest podcasts include "Marfa Mondays" interviews with bee expert Cynthia McAlister; Avram Dumitrescu, a talented painter originally from Belfast; Museum of the Big Bend curator Mary Bones on the Big Bend's Lost Art Colony; and Charles Angell, expert wilderness guide and travel writer. Plus, several in the Conversations with Other Writers series, mostly recently, Elena Poniatowska's biographer, Michael K. Schuessler and travel writer and memoirist Sara Mansfield Taber.)