Domestic Box Office For December 1978
| Rank | Release | Gross | Theaters | Total Gross | Release Date | Distributor |
|---|---|---|---|---|---|---|
| 1 | Every Which Way But Loose | $85,196,485 | 1,275 | $85,196,485 | Dec 20 | Warner Bros. |
| 2 | Superman | $30,561,867 | 817 | $134,218,018 | Dec 15 | Warner Bros. |
| 3 | Invasion of the Body Snatchers | $24,946,533 | 445 | $24,946,533 | Dec 22 | United Artists |
| 4 | Brass Target | $5,011,158 | 334 | $5,011,158 | Dec 22 | Metro-Goldwyn-Mayer (MGM) |
