On this edition of The Arts Section, host Gary Zidek previews this year’s Chicago Underground Film Festival, the 30th edition of the annual showcase of the avant garde and eccentric. The Dueling Critics, Kerry Reid and Jonathan Abarbanel, join Gary for part two of their fall theater preview. Later in the show, Gary catches up with the author of a book about the cultural influence of Star Trek (this week is the 57th anniversary of the original series debut). And we’ll hear about an exhibit that profiles the local connections of a vending machine that sold fun.