I'm slowly going through the various episodes and thus far my favorite has to be Superman III. The podcast is broken into two parts...the first is about the movie but the second part is basically an interview.
They interview the actor that plays the tall, mute brute from Superman 2. That is one interesting guy and he's got some great stories to tell.
As an aside, something I never knew until listening to this episode, was the back story on the director switch...I had no idea and I grew up with that movie...very interesting.