In this meticulously researched documentary, filmmaker Mark Hall traces the origins of sushi in Japan to its status today as a cuisine that has spawned a lucrative worldwide industry.In this meticulously researched documentary, filmmaker Mark Hall traces the origins of sushi in Japan to its status today as a cuisine that has spawned a lucrative worldwide industry.In this meticulously researched documentary, filmmaker Mark Hall traces the origins of sushi in Japan to its status today as a cuisine that has spawned a lucrative worldwide industry.