Rebecca Ferguson joins The Girl on the Train movie adaptation

Ferguson will play Anna, the current wife of Rachel’s (Blunt) ex-husband.

Rachel is a divorced woman with an alcohol problem, who fantasises about the perfect life of a family whose house she passes on her daily commute.

But after seeing something shocking, she finds herself pulled into their lives and the problems that follow.

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The third main female role has yet to be cast.

Last month, it was confirmed that the big-screen adaptation of Paula Hawkins’s novel will take place in New York City, abandoning the book’s English setting.