Gerald Peary, longtime film critic for the Boston Phoenix and curator of the Boston University Cinematheque, spoke recently with BU Today about his work at the cinematheque, the state of film criticism in the online age, and his new documentary For the Love of Movies: The History of American Film Criticism. Among the writers featured in the documentary are Roger Ebert, Stanley Kauffman, Harry Knowles, Karina Longworth, Elvis Mitchell, Wesley Morris, Rex Reed, Andrew Sarris, Linda Schwarzbaum, A.O. Scott, and Kenneth Turan.