The Girl on the Train trailer- what happened in the tunnel?

Anyone who took public transport in 2015 definitely saw hordes of people reading Paula Hawkins' The Girl on the Train. It was a total publishing phenomenon, selling millions of copies and staying atop bestseller lists for weeks.

Naturally a film adaptation was fast tracked and it's going to be in cinemas less than two years after the book arrived in January 2015. It even has a hugely impressive cast including Emily Blunt, Luke Evans, Haley Bennet, Justin Theroux and Alison Janney.

The full trailer dives deeper into the story of this psychological thriller. There will be twists and turns.