If you believe Americans deserve a happy ending because even if they're stupid, they're true believers, and they're on the right side of moral values-- then you can stomach the twists and turns of the plot. After all, it started off with potential. It's got honest-to-goodness Russian scenery on a real Russian train. Yes, there probably is international narcobusiness on the Transsiberian, corrupt police, rude conductors. But it's all a bit over the top.

There are very good actors. Ben Kingsley is above reproach. Woody Harrelson is right on target as an oafish Iowan abroad. But why would his wife spill out her story to a stranger on a train if it were not that the screenplay needed enough back-story for an implausible relationship? And isn't it suspicious that the Spanish hunk is the evil tempter, ergo the only character responsible for his misdeeds? And violent torture is the specialty of the Russian mob, so even when they realize they're dealing with mere dupes, they must literally extract their pound of flesh?