1978 Monthly Box Office
Wide releases are those released in at least 600 theaters.
Data as of Jul 19, 1:59 PDT
| Month | Cumulative Gross | % of Year | Releases | Average | Average Drop | #1 Release | Gross | % of Total |
|---|---|---|---|---|---|---|---|---|
| December | $219,414,503 | 48% | 2 | $109,707,251 | -12.5% | Superman | $134,218,018 | 61.2% |
| June | $237,716,142 | 52% | 2 | $118,858,071 | - | Grease | $159,978,870 | 67.3% |
