Frank Zappa's children are locked in a struggle over his estate and legacy – and the story goes back decades
Footage from 1973 appears in 'Eat That Question,' out this week
Frank Zappa's son also discusses why St. Vincent reminds him of dad
"My last name is Zappa; my father was Frank Zappa, but I am not allowed to use the name on its own," guitarist says
Video comes via producers of documentary 'Who the F*@% Is Frank Zappa'
'Eat That Question' charts iconoclastic musician's entire career through archival clips and Zappa's own words
Archival film 'Eat That Question' will premiere at Sundance
From a gritty drama about mass shootings to a new doc on Michael Jackson, the fest's can't-miss titles
Musical firebrand also conducted the New York Philharmonic and BBC Symphony Orchestra
New movies from Spike Lee, Werner Herzog, and a Soderbergh-produced TV show round out fest premierses
"Dragon Master" will appear on son's upcoming album, 'Via Zammata''
As longtime head of Zappa Family Trust, wife was responsible for issuing close to 40 albums of previously unreleased music by Frank since his 1993 death
Long-fabled film will finally come out this fall
Gail and Ahmet Zappa and filmmaker Alex Winter explain how they'll attempt to answer that question with a new film examining the legendary rocker and composer's life
Deal with Universal Music Enterprises will include 'Joe's Garage, the Musical,' 'The Roxy Movie' and 'One Size Fits All' vinyl reissue