The Day After Tomorrow (2004)
It may be typical Roland Emmerich tripe, but I'll be damned if it's not thoroughly entertaining. Part of me wonders if the film actually did damage to climate change perception, causing people to dismiss it as impossible fantasy. Because there's no way it would play out so dramatically and abruptly worldwide. It will no doubt be a more gradual shift. So, deniers will always have plausible deniability: "See, that shit ain't happening!"