1978 Monthly Box Office
Data as of Jun 20, 2:04 PDT
| Month | Cumulative Gross | % of Year | Releases | Average | Average Drop | #1 Release | Gross | % of Total |
|---|---|---|---|---|---|---|---|---|
| December | $332,275,270 | 21.4% | 10 | $33,227,527 | -12.5% | Superman | $134,218,018 | 40.4% |
| November | $34,401,921 | 2.2% | 2 | $17,200,960 | - | The Lord of the Rings | $30,471,420 | 88.6% |
| October | $133,133,201 | 8.6% | 6 | $22,188,866 | - | Halloween | $47,000,000 | 35.3% |
| September | $25,192,351 | 1.6% | 3 | $8,397,450 | - | Death on the Nile | $14,560,084 | 57.8% |
| August | $74,796,610 | 4.8% | 3 | $24,932,203 | - | Up in Smoke | $44,364,244 | 59.3% |
| July | $320,057,721 | 20.6% | 6 | $53,342,953 | - | National Lampoon's Animal House | $120,091,123 | 37.5% |
| June | $393,244,423 | 25.3% | 8 | $49,155,552 | - | Grease | $159,978,870 | 40.7% |
| May | $59,332,746 | 3.8% | 3 | $19,777,582 | - | The End | $44,917,151 | 75.7% |
| April | $26,175,288 | 1.7% | 2 | $13,087,644 | - | F.I.S.T. | $20,388,920 | 77.9% |
| March | $34,225,571 | 2.2% | 3 | $11,408,523 | - | Return from Witch Mountain | $16,393,000 | 47.9% |
| February | $57,421,948 | 3.7% | 4 | $14,355,487 | - | Coming Home | $32,653,905 | 56.9% |
| January | $62,082,702 | 4% | 5 | $12,416,540 | - | House Calls | $28,460,702 | 45.8% |
