Another tour de force from brilliant yet underappreciated Brad Anderson, of The Machinist fame. Kingsley shines, as does Mortimer and even Harrelson, which for once uses his naïve dumb American persona to full effect. Kingsley works marvelously as the Russian detective with the double agenda, and the whole thing unravels to almost pitch-perfect thriller that works wonders against the cold, gray landscape of Siberia and the interiors of the famous trans-Siberian train. Story takes a nice twist and it's all nicely wrapped up in the end, complete with the requisite wildcard ending. Overall an entertaining and enjoyable ride - they rarely make these anymore.