DocuFest – the documentary wing of VideoFest – opens Thursday night in Dallas. To get you ready, we preview a pair of films that focus on the arts. “Dare to be Different” (Thursday at 9:15 p.m.) looks at an influential radio station that helped to popularize Depeche Mode, Blondie, Pet Shop Boys and other early ’80s acts. And “Ex Libris: New York Public Library” (Saturday at 11 a.m.) is legendary documentarian Frederick Wiseman’s look at one of the world’s largest library systems. And be sure to catch Krys Boyd’s interview on Think with the director of “Bombshell: The Hedy Lamarr Story.” Everything screens at the Studio Movie Grill on Northwest Highway.

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