A disaster film is a film genre that has an impending or ongoing disaster as its subject and primary plot device. Such disasters include natural disasters such as earthquakes or asteroid collisions, accidents such as shipwrecks or airplane crashes, or calamities like worldwide disease pandemics. The films usually feature some degree of build-up, the disaster itself and sometimes the aftermath, usually from the point of view of specific individual characters or their families. These films often feature large casts of actors and multiple plotlines, focusing on the characters' attempts to avert, escape or cope with the disaster and its aftermath. The genre came to particular prominence during the 1970s with the release of high-profile films such as Airport (1970), followed in quick succession by The Poseidon Adventure (1972), Earthquake (1974) and The Towering Inferno (1974). The casts were generally made up of familiar character actors.