The Tale of Sweeney Todd character of Sweeney Todd, the Demon Barber of Fleet Street, originated in an 1846–47 penny dreadful entitled "The String of Pearls". In 1847, George Dibdin Pitt adapted the story for a stage melodrama. A directed by George King was the first screen version. Christopher Bond's 1973 stage adaptation was musicalized by Stephen Sondheim in 1979. Schlesinger's film is a dramatic departure from the previous narratives. It dispenses with all the characters except Todd and Lovett, adds the plotline involving the missing diamonds, and offers a completely different reason for Todd's murder spree. The Victorian era locales were filmed in Dublin,
Sweeney Todd: The Demon Barber of Fleet Street to Sondheim, "Your show is not called 'Nellie Lovett', it's called 'Sweeney Todd'. And I'm the second banana." To convince her, Sondheim "auditioned," writing a couple of songs for her, including the macabre patter song, "A Little Priest." And he gave her the key to the character, saying "I want Mrs. Lovett to have a music hall character." Lansbury, who had grown up in British music hall, immediately got it. "Not just music hall ... but dotty music hall", as she put it. After she was formally confirmed in the role, she relished the opportunity, saying that she loved "the