AFI Docs names Dawn Porter as 2021 Charles Guggenheim Symposium honoree AFI Docs, the American Film Institute’s documentary film festival, has named filmmaker Dawn Porter as its 2021 Charles Guggenheim Symposium honoree. This year’s virtual symposium will include a free screening of Dawn ... May 20, 2021 AFI Docs, the American Film Institute’s documentary film festival, has named filmmaker Dawn Porter as its 2021 Charles Guggenheim Symposium honoree. This year’s virtual symposium will include a free screening of Dawn Porter’s upcoming documentary with National Geographic Documentary Films, Rise Again: Tulsa and the Red Summer, as well as an in-depth conversation with Porter, moderated by