My Fair Lady provided the singing voice of Audrey Hepburn in the film version. A U.S. tour of Mackintosh's 2001 West End production ran from September 12, 2007, to June 22, 2008. The production starred Christopher Cazenove as Higgins, Lisa O'Hare as Eliza, Walter Charles as Pickering, Tim Jerome as Alfred Doolittle and Nixon as Mrs. Higgins, replacing Sally Ann Howes. An Australian tour produced by Opera Australia commenced in May 2008. The production starred Reg Livermore as Higgins, Taryn Fiebig as Eliza, Robert Grubb as Alfred Doolittle and Judi Connelli as Mrs Pearce. John Wood took the role of Alfred Doolittle in
West Side Story (film) to her own vocals and was led to believe that these versions would be used, although music supervisors Saul Chaplin and Johnny Green had already decided to use Marni Nixon's voice. Wood's singing voice is only heard during the reprise of the song "Somewhere" when Tony dies. Though Nixon had recorded the songs in the same orchestra sessions as Wood, she had to re-record them to synch with Wood's filmed performances. Even the one song for which Wood had lip-synched to Nixon's voice, "One Hand, One Heart", had to be recorded again because Wood's lip-synching was unsatisfactory. When Marni Nixon