They were perhaps the ultimate buddy-cop duo in a time of all-star films. How could you top a rambunctious dog witness to his owners murder, and the tidy detective tracking down the killer. Oh yeah, and who also happens to be Tom Hanks!The pair made for hilarious partners, but there was a lot that went into the making of the movie they brought Hanks closer his co-stars than we ever knew. If you remember your heart aching when we lost "that stupid dog", then this is the list for you!Tough DecisionsContCasting is always the hardest part in starting