3. Free Willy (1993)
Dogs get all the tears, but Willy was a whale that left us whining something awful. An injured Orca whale, Willy is taken in at a Sea-World-esque theme park, where juvenile deliquent/orphan Jesse becomes the only human he can spend time with without wanting to eat them alive.
Unfortunatley, Jesse's new BFF is in high demand (ie: gets kidnapped for his big bucks insurance policy), so Jesse enlists the help of his foster father to free Will. After coaching Willy into an Evel Knievel jump over an impossibly large rockwall, the two share an emotional goodbye that had us wishing Willy has been a Moby Dick so we wouldn't be left cursing the disgustingly effective ploy for tears the whole plot was.