I guess you could even talk of the movie "the big short" as kind of an historical mega-betting, but from Wall Street. For those who have not seen it, it is about a well know hedge-fund manager that, in the moment of the biggest housing bubble known to humankind see further than the rest and decides that it is the moment to take a "short" position (selling without having the asset). I will not spoil the end, but it is a real superbet.