Two big-budget drama movies. In 'The Day After Tomorrow' (2004), global warming and the greenhouse effect have given rise to abrupt climate change - with cataclysmic consequences for the entire planet. Dennis Quaid stars as Professor Adrian Hall, a paleoclimatologist who is fighting to save the world from a second ice age and all the natural disasters that herald it: floods, hurricanes, earthquakes and tornadoes to name but a few. But first, Hall must complete a more personal mission: his son Sam (Jake Gyllenhaal) is stranded in New York City where he was taking part in a school competition when the catastrophe began. As well as facing a perpetual onslaught of natural catastrophes, Hall must fight his way through the mass of humanity fleeing south into warmer climes... but can he reach his son in time to save him? In 'Volcano' (1997), Mike Roark (Tommy Lee Jones), head of Los Angeles' Office of Emergency Management, teams up with seismologist Dr Amy Barnes (Anne Heche) when an explosion underground kills some construction workers. It transpires that the building of a tunnel has sparked off volcanic activity beneath the city, and soon the streets of LA are flowing with lava. As the city plunges into chaos, Roark's teenage daughter Kelly is caught up in the catastrophe.