"We've never pulled from the toy line. We've always pulled from the mythology. What's great is there's so much mythology, so there's always stuff to pull from that. It never lines up perfectly for a movie; it's just like adapting a book or anything else, you know? But you come up with things to create, you come up with different ideas, but fundamentally the ideas always start from the mythology."

Next Quote

It's one of those things where the book has all these stars that burn really bright that you hang onto and they're all saying, 'This is The Girl on the Train experience.' All those stars or hooks needed to be in the film, but sometimes they needed to be a bit different. It's important when adapting such a popular book to hit all those points but also break out expectations without slaughtering the book. And that was, for me, the joy of adapting the book.

— Erin Cressida Wilson