Tonya Harding was, as the movie points out, briefly the second most famous person in the world (after Bill Clinton). Growing up in poverty, the young Tonya had a passion for ice skating, and a rare talent for it too. In 1991 she was US champion and world silver medallist, and became the first woman ever to land a triple axel in competition.
The “Girl on The Train”, Rachel, played by Emily Blunt, takes a commuter train each day into Manhattan and back. The train pauses in its journey opposite a house where she sees a seemingly perfect couple, Scott and Megan. Rachel, an aspiring artist, sketches the beautiful Megan (Haley Bennett) from her vantage point of the train carriage.