Reading Paula Hawkins’ best-selling novel The Girl on the Train had me in a constant state of anxiety over its protagonist, Rachel Watson. I’m not sure I’ve ever rooted for a character so hard in all my reading life. She’s a mess, you guys. It’s so sad. Her struggle with alcohol addiction is hard enough to read, but it’s her profound sense of loneliness and isolation that really hit me right in the feels.

It’s also what made The Girl on the Train such a compelling read. Rachel is a multi-layered character, an unreliable narrator who eventually develops an obsession with a couple she sees every day through the window of her passing train. That’s when the real fun begins.

We were thrilled when the news broke that there would be a motion picture adaption of The Girl on the Train, and doubly thrilled when we heard that the AMAZE Emily Blunt would be playing Rachel. We fell hard for Blunt when she played snooty Emily Charlton in The Devil Wears Prada, and our love for her just keeps getting stronger. (The Young Victoria? Total swoon material. The Five-Year Engagement? All of the yes!)

If anyone can do justice to a role as nuanced as Rachel Watson, it’s Emily. So we’re not at all surprised to see the amazing way she embodies Rachel’s feelings of despair, obsession and isolation in the first still from Girl on the Train.

The look on her face! Oh, this is going to be good, guys. We can just feel it. Entertainment Weekly also has a photo of Blunt as Rachel walking through a crowd, which you can see here.

The Girl on the Train hits theaters on October 7. Ugh, that’s a long wait…

[Image via Shutterstock, Twitter.]