It’s the Big One. The lives of a rogue policeman (George Kennedy), a construction engineer (Charlton Heston) having an affair with an actress (Geneviève Bujold) to the chagrin of his wife (Ava Gardner), plus a grocery store manager, a daredevil motorcyclist and others are shaken when a major earthquake rips through Los Angeles in this high-budget ensemble. Features a rousing score by John Williams.