 | Damien: Omen II | 1978 | Jun 9, 1978 | $6,800,000 | $26,518,355 | $26,518,355 | $7,163,766 | 35.0 |
 | Grease | 1978 | Jun 16, 1978 | $6,000,000 | $159,978,870 | $159,994,471 | $112,092,511 | 90.9 |
 | Jaws 2 | 1978 | Jun 16, 1978 | $20,000,000 | $77,737,272 | $77,737,272 | $29,026,072 | 59.8 |
 | Heaven Can Wait | 1978 | Jun 28, 1978 | $6,000,000 | $81,640,278 | $81,640,278 | $46,183,417 | 41.0 |
 | National Lampoon's Animal House | 1978 | Jul 28, 1978 | $3,000,000 | $120,091,123 | $120,098,342 | $89,921,342 | 68.2 |
 | The Lord of the Rings | 1978 | Nov 15, 1978 | $4,000,000 | $30,471,420 | $30,474,857 | $14,569,565 | 52.9 |
 | Superman | 1978 | Dec 15, 1978 | $55,000,000 | $134,218,018 | $134,220,479 | $41,041,300 | 84.8 |
 | Every Which Way But Loose | 1978 | Dec 20, 1978 | $5,000,000 | $85,196,485 | $85,196,485 | $57,403,012 | 44.4 |
 | Brass Target | 1978 | Dec 22, 1978 | $5,512,000 | $5,011,158 | $5,011,158 | $-5,065,143 | 13.3 |
 | Invasion of the Body Snatchers | 1978 | Dec 22, 1978 | $5,329,000 | $24,946,533 | $24,947,762 | $7,313,100 | 42.4 |