This essential 1970s disaster epic, with a script co-authored by Mario Puzo (THE GODFATHER), centers around a devastating earthquake in Los Angeles and the shocking aftermath it causes. The all-star cast is led by Charleton Heston as a construction engineer whose marital problems supply him with plentiful stress before the quake even hits. The film was presented theatrically with a sound process known as "Sensurround," which caused cinemas to physically vibrate during quake sequences.