Army of ghosts

Beforehand (I had merely seen the cover), I thought this movie was about two travellers - Colin Firth and Nicole Kidman - who fall in love on the train and chitchat to eternity about politics and literature. Well no, it wasn't like that. Eric Lomax (Firth) is a railway enthusiast alright, but with a haunting past that leads us all the way to the labor camps in WWII Thailand (Kanchanaburi) where the Japanese tortured allied forces to pulp.