Transsiberian is a thriller that will continue to keep you guessing.  Roy and Jessie, an American couple, take the transsiberian train.  Along the way things start to unravel, and the viewer is left questioning everything.  Very well thought-out and executed, yet unsatisfying.  When the film ended I was left wanting more.  Emily Mortimer does a fantastic acting job, as does the rest of the cast.  Recommended if you are looking for a thriller that will keep you guessing.