The Public Square Sept. 16 hosts a special screening of The Gift, Louise Hogarth’s documentary about ‘bug-chasers’ and ‘gift-givers,’ gay men who intentionally seek out HIV infection or willingly infect others in an attempt to find a sense of community. The film will be followed by a discussion with the director, local activists, filmmakers, academics and journalists. RSVP: lisa@thepublicsquare.org, 6 p.m., 117 N. Jefferson, Suite 201, www.thepublicsquare.org.