The South by Southwest Film Conference and Festival confirms today that indie multi-hyphenate Mark Duplass will be one of its four daily Keynote speakers. More announcements about SXSW Conversations, panels, and workshops also arrive. SXSW runs in Austin, Texas from March 13 to 21, 2015. Duplass, alongside brother and co-director Jay, exploded onto the indie scene in 2005 with their made-on-a-dime dramedy "The Puffy Chair." They've since directed more mainstream-skewing films like "Cyrus" and "Jeff, Who Lives at Home." Their upcoming HBO series "Togetherness," co-starring Mark Duplass, hits in 2015.