Shirley Clarke screened Portrait of Jason for perhaps the most impressive and illustrious focus group ever assembled. Among the names on the RSVP list for the private 3:00 PM enagement on July 9, 1967 at the Museum of Modern Art:

Elia Kazan, Terry Southern, Virgil Thompson, Willard Van Dyke, Bill Greaves, Norman Mailer, David Amram, Rip Torn and Geraldine Page, George Plimpton, Eddie Jaffee, Amos Vogel, Stanley Kaufman, Allen Ginsberg, The Fugs, Richard Foreman, Larry Kardish, Thomas Hoving, Mike and George Kuchar, Arthur Miller, Henry Geldzahler, Barney Rosset, D.A. Pennebaker, Storm de Hirsch, Robert Frank, Jason Holliday, Andy Warhol, Robert Lowell, Paul Morrissey, Michael Snow, Tennessee Williams, Lionel Ziprin, Harry Smith.