Shaggy Dog, The (2006)
Plot:
Workaholic Dave is transformed into a lovable dog. This overworked dad, however, wants nothing more than to stop fetching ... and get back to fathering. But before he does, he's about to discover that being man's best friend gives him a curious insight into what it takes to be a great dad.
Director:Brian Robbins
Starring:Tim Allen, Danny Glover, Robert Downey, Jr., Kristin Davis, Spencer Breslin