Jake Kanter International TV EditorIdris Elba has again teased the idea of turning his cult BBC detective drama Luther into a feature, more than a year after Season 5 aired on British television.The actor told a press junket for Season 3 of his Sky comedy In The Long Run that there are no “formal plans” for another Luther series, according to Sky News.But Elba added: “I’ve made it very clear that I’d like to see Luther come back as a film.