KEY POINTS:
Borat star Sacha Baron Cohen is reportedly signed up to appear in a big-screen version of Sweeney Todd.
The comedian will play Signor Adolfo Pirelli, a barber who becomes Todd's nemesis, in director Tim Burton's film of the musical.
Burton's long-term partner, Helena Bonham Carter, will star as Mrs Lovett, who teams with Todd to kill people, grind them up and use them in her meat pies.