Fluke (1995)

"Unleash your imagination... and come along on a magical journey. Follow him home."

Workaholic Thomas Johnson dies in an auto accident and reincarnates as a dog. Remembering some of his previous being, he returns to his wife and son to protect them from the man who caused his accident. But, as time goes by, his memories return, and Thomas realizes he wasn't such a good husband and father.