What is a Disaster Film

A disaster film is a movie genre that has an impending or ongoing disaster (such as a damaged airliner, fire, shipwreck or an asteroid collision) as its subject. These films typically feature large casts of well-known actors and multiple plotlines, focusing on the characters' attempts to avert, escape or cope with the disaster and its aftermath. The genre had its greatest box office success during the 1970s with the release of Airport (1970), followed in quick succession by The Poseidon Adventure (1972), Earthquake (1974) and The Towering Inferno (1974).

Would Cloverfield be considered a disaster film?

i guess it would but it has an ass load of sub categories