It is a movie an old one, don't remember what year. The happeninig is at farm, a mother with 2 or 3 children( I'm sure for 2 boys, one older) and their father is gone in town or something, and they have a dog its called yellow. Please if someone knows tell me the name of the movie.. it's the movie of my childhood :) Thanks

This one?

Old Yeller (1957) - IMDb (http://www.imdb.com/title/tt0050798/)

Old Yeller (1957) - Wikipedia (http://en.wikipedia.org/wiki/Old_Yeller_%281957_film%29)

Old Yeller

I agree, sounds like Old Yeller.

Classic movie, but I can't watch it. Make me cry every single time. Marley and Me is just as bad, gushing tears at the end.

Yep that's its :) Thank you very much