Domestic Box Office For December 1979
| Rank | Release | Gross | Max Th | Opening | % of Total | Open Th | Open | Close | Distributor |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Kramer vs. Kramer | $106,260,000 | 898 | - | - | - | Dec 19 | - | Columbia Pictures |
| 2 | Star Trek: The Motion Picture | $82,258,456 | 1,002 | $11,926,421 | 14.5% | 857 | Dec 7 | - | Paramount Pictures |
| 3 | The Jerk | $73,691,419 | 525 | $5,935,025 | 8.1% | 525 | Dec 14 | - | Universal Pictures |
| 4 | The Electric Horseman | $61,801,971 | - | - | - | - | Dec 21 | - | Columbia Pictures |
| 5 | All That Jazz | $37,823,676 | 5 | $86,229 | 0.2% | 5 | Dec 20 | - | Twentieth Century Fox |
| 6 | The Black Hole | $35,841,901 | - | - | - | - | Dec 21 | - | Walt Disney Studios Motion Pictures |
| 7 | 1941 | $31,755,742 | 325 | $2,701,898 | 8.5% | 325 | Dec 14 | - | Universal Pictures |
| 8 | Being There | $30,177,511 | - | - | - | - | Dec 21 | - | Metro-Goldwyn-Mayer (MGM) |
| 9 | Going in Style | $26,869,286 | 731 | $1,781,164 | 6.6% | 731 | Dec 25 | - | Warner Bros. |
| 10 | Roller Boogie | $13,253,715 | 478 | $767,854 | 5.8% | 478 | Dec 19 | - | Metro-Goldwyn-Mayer (MGM) |
| 11 | Cuba | $5,610,280 | 331 | $527,540 | 9.4% | 331 | Dec 21 | - | Metro-Goldwyn-Mayer (MGM) |
| 12 | The Human Factor | $376,050 | - | - | - | - | Dec 18 | - | Metro-Goldwyn-Mayer (MGM) |
