'The Christmas Train', in short: Strong cast, lame plot. I did enjoy those onscreen, but I just didn't find any entertainment with the story - which, due to the ending (which I did see coming, but was hoping I was wrong), only gets less and less watchable. If you are wanting an Xmas train film, much better ones are out there - I'm looking at you, 'The Polar Express' or even 'Last Train to Christmas'.
Kimberly Williams-Paisley gives a positive showing, I'd say this is the best I've seen from her in the Hallmark world thus far. Dermot Mulroney and Danny Glover are good as well, though the latter's character is very dull. Joan Cusack is involved too. The support cast are decent too, usually in these sorta films the acting level is relatively low but here it's solid.
Unfortunately for those mentioned, the plot they are portraying just didn't hold my attention and I was rather bored; even if it isn't anything wholly 'bad', per se.