OK I need help, there's an old black and white movie I saw a while ago and I can't remember what its called. Its about a woman who falls in love with a man and over the years that have an in-out affair relationship, they go on a ride that's a train and adds different settings in the background, he promises he's going to take her away with him but doesn't show, she ends up having his child and on her death bed rights him a letter saying how she's loved him all these years and what not. I've searched EVERYWHERE. Can anyone help me?