Marley and Me.
Typical, but It's really sad.
There are a Japanese and an American film inspired in a real story of a dog called Hachiko wich every day went to the railway station to wait for its owner, although he died long time before. Every day of its life was the brave animal waiting for him at the same place and at the same time and it never gave up. Obviously the man never appeared but his loyal friend was always there looking at the train.
I saw the American version with Richard Gere. I'm a strong man but I don't think I could resist a review of this moovie because this dog broke my heart completely. I cried a river.
- Me Before You