Speaking withDeadline, the Golden Globe winner said she was pulled into the storys very damaged protagonist.
I think its very relatable.
The film, based on the best-selling novel byPaula Hawkins, sees Blunt as Rachel Watson.

Credit: Monica Schipper/Getty Images
One day, she sees something shocking and becomes entwined with the mystery that follows.
And yet shes right, and nobody believes her.
The idea of playing a part like that where you just feel like youre drowning is exciting.
Ive never played a blackout drunk before, so this is new to me now.
The Girl on the Traindebuts in theaters on Oct. 7.
Head toDeadlinefor more from Blunts interview.