“The Christmas Train” (*** out of four) was a sweetly engaging story about a cynical journalist (Dermot Mulroney) who boards a holiday train to Los Angeles and starts to become friends with many of the passengers (Danny Glover, Joan Cusack, Kimberly Williams-Paisley) which gradually makes him realize the changes he needs to make to his life to open him up to more happiness. Not much plot per se but the upbeat spirit of its first-rate cast and holiday surroundings and settings make it entertaining. Mulroney is terrific in the lead.