Academy Award-winning actress and writer Emma Thompson had penned the screenplay for the new film adaptation that was in development at Sony Pictures. Actress Carey Mulligan was reported to star as Eliza Doolittle.
According to Mackintosh, the film "didn't happen because of various things that happened with the rights and the studio and everything like that."
Mackintosh and Duncan Kenworthy were attached to produce the film.
My Fair Lady is based on George Bernard Shaw's Pygmalion and features a book and lyrics by Alan Jay Lerner and music by Frederick Loewe. The original Broadway production opened on March 15, 1956, ran for over six years and won nine Tony Awards, including one for Best Musical. The score contains such Broadway classics as "I Could Have Danced All Night," "On the Street Where You Live," "Wouldn't It Be Loverly?" and "Get Me to the Church on Time."
The musical was adapted for the screen in 1963, directed by George Cukor, and cast Audrey Hepburn as Eliza and Rex Harrison as Higgins. The film won eight Academy Awards, including Best Picture, Best Director and Best Actor.