8. "Unwittingly, He Trained A Dolphin To Kill The President Of The United States..." - Day of the Dolphin
This one might've been lower down the list, had it not also doubled as being the greatest sentence ever written by a human being, not to mention downright hilarious. Where to start with this one, though? I mean, there are so many good things about it that it genuinely baffles the mind. The use of the word unwittingly is great, obviously, because how the hell does somebody do something as bizarrely specific as training a dolphin to kill the president without realising? The movie sucks, but the tagline is about as good as four Shakespeare plays, I reckon.