Yeah, and Disney did several, including the 1963 original, Saw it, esp.as a first time viewer, the happy ending is REALLY magical../ but then, all dogs are.
I wasn't necessarily sorry that I watched it but I turned it on with my 8 year old nephews and I got a little concerned about the themes it brought up for a kid movie (mostly how it dealt with death, the homeless, and pet abandonment). It seemed too out-there to be bslievable or entertaining for adults and it also seemed too depressing for kids. It seemed kind of dark for a kid movie. I think I need to go wash my brain and rewatch Homeward Bound!
Homeward Bound is great! I rewatched it for the first time in years just a little while ago and it's still a lot of fun. If you're considering it, definitely give it a go.