The visionary theater director Richard Foreman has been an icon of New York’s avant garde for 40 years. Whether or not you’re familiar with his work, this portrait gives an accessible entry to understanding an important chapter of cultural history, packed with interviews including F. Murray Abraham, Eric Bogosian, James Cromwell, Willem Dafoe, Yoko Ono, Lou Reed, Suzan-Lori Parks, Ben Silverman, Stanley Silverman, Wallace Shawn and Lili Taylor. Director Ryan Kerrison brings an attention to visual detail that fulfills the integrity of his subject.