Lady and the Tramp
This is a tale about a cocker spaniel dog and a streetwise mutt dog. All blended in a romantic story about the two dogs.
See it at IMDB: http://www.imdb.com/title/tt0048280/
The Fox and the Hound
Here you will find a kute little dog, little sloppy, growing up with a fox in the woods. They get to be friends and enemies through the movie.
See it at IMDB: http://www.imdb.com/title/tt0082406/
Homeward Bound II: Lost in San Francisco
The incredible trip of two dogs and a cat! Gotta love this movie! 
Its a classic and still as much fun today as for fiften years ago.
See it at IMDB: http://www.imdb.com/title/tt0116552/
Big Red
All the way back to 1962 you find this great story taking place in Quebec. Worth watching if you get a hold of a copy.
See it at IMDB: http://www.imdb.com/title/tt0055793/
