Amy Winehouse biopic 'Back to Black' features Marisa Abel's vocals rather than recordings of the original. Director Sam Taylor-Johnson, speaking from the film's World Premiere in London's Leicester Square, explains why she chose to feature the actor's voice as opposed to having her lip-sync vocals like other biopics have done before. Report by Burtonj. Like us on Facebook at http://www.facebook.com/itn and follow us on Twitter at http://twitter.com/itn