I loved this movie! I tried not to read too much about it beforehand because so many reviews & trailers have "plot spoilers" - so my attention was held as the plot unfolded.
Great performances from Ben Kingsley, Emily Mortimer, Woody Harrelson and Kate Mara (who loses her sunny,cheerleader-y disposition for this performance!)

The first half of the film takes place on the Transsiberian train and the claustrophobic atmosphere really added to the tension as the story began to build. The desolate snowscapes and off-the-beaten path locations in rural Russia gave us a peek at how different things are outside of Moscow.