Getty Images Hannah Einbinder and Gillian Anderson are promoting their new movie! The Hacks star and The X-Files alum stepped out together for the premiere of their new film Teenage Sex and Death in Camp Miasma during SXSW London 2026 on Saturday (June 6) at The Barbican in London, England. Credit: Getty Images The co-stars posed for photos on the red carpet before heading onstage together for a Q&A tied to the upcoming horror film. Photos captu…