In The Sweet Requiem, a film by Ritu Sarin and Tenzing Sonam that premiered at the Toronto International Film Festival this year, the protagonist Dolkar can’t quite understand why Tibetans self-immolate. Firstpost caught up with Tenzing Sonam and Ritu Sarin, whose filmmaking careers have been dedicated to documenting the lives of Tibetans in exile on film, shortly after the premiere …