This week Elvis sits down with actor and director Alex Winter, whose new documentary “Zappa” chronicles the life and performance of avant-garde rocker Frank Zappa. Winter’s films as a director include “Downloaded,” “Deep Web” and “Showbiz Kids.” He is also known as an actor for his role as “Bill” in the “Bill and Ted” trilogy. Winter talks about why his pitch to Zappa’s widow about his approach to the film allowed him access to previously unreleased film footage. He talks about Zappa’s unique and misunderstood relationship with his audience and the similarities between Prince and Zappa’s collagist approaches to their art.