Domestic Box Office For December 1984
| Rank | Release | Gross | Max Th | Opening | % of Total | Open Th | Open | Close | Distributor |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Beverly Hills Cop | $234,760,478 | 2,006 | $15,214,805 | 6.5% | 1,532 | Dec 5 | - | Paramount Pictures |
| 2 | 2010: The Year We Make Contact | $40,400,657 | 1,213 | $7,393,361 | 18.3% | 1,126 | Dec 7 | - | Metro-Goldwyn-Mayer (MGM) |
| 3 | City Heat | $38,348,988 | 1,655 | $6,301,694 | 16.4% | 1,393 | Dec 7 | - | Warner Bros. |
| 4 | Dune | $31,439,560 | 975 | $6,025,091 | 19.2% | 915 | Dec 14 | - | Universal Pictures |
| 5 | Starman | $28,744,356 | 1,271 | $2,872,022 | 10% | 1,261 | Dec 14 | - | Columbia Pictures |
| 6 | A Passage to India | $27,187,653 | 650 | $84,580 | 0.3% | 3 | Dec 14 | Apr 25 | Columbia Pictures |
| 7 | Pinocchio 1984 Re-release | $26,414,038 | 1,309 | $3,769,251 | 14.3% | 1,217 | Dec 21 | - | Walt Disney Studios Motion Pictures |
| 8 | Protocol | $26,186,631 | 904 | $3,427,840 | 13.1% | 893 | Dec 21 | - | Warner Bros. |
| 9 | Micki + Maude | $26,080,861 | 876 | $2,742,458 | 10.5% | 794 | Dec 21 | - | Columbia Pictures |
| 10 | The Cotton Club | $25,928,721 | 809 | $2,903,603 | 11.2% | 808 | Dec 14 | - | Orion Pictures |
| 11 | The Flamingo Kid | $23,859,382 | 753 | $2,015,076 | 8.4% | 531 | Dec 21 | - | Twentieth Century Fox |
| 12 | Johnny Dangerously | $17,124,395 | 1,106 | $2,947,746 | 17.2% | 1,086 | Dec 21 | - | Twentieth Century Fox |
| 13 | Breakin' 2: Electric Boogaloo | $15,101,131 | 908 | $2,921,030 | 19.3% | 707 | Dec 21 | - | TriStar Pictures |
| 14 | The River | $11,489,982 | 1,001 | $30,027 | 0.3% | 3 | Dec 21 | - | Universal Pictures |
| 15 | 1984 | $8,430,492 | 295 | $29,897 | 0.4% | 1 | Dec 14 | - | The Samuel Goldwyn Company |
| 16 | Runaway | $6,770,587 | 720 | $1,198,279 | 17.7% | 720 | Dec 14 | - | TriStar Pictures |
| 17 | Mrs. Soffel | $4,385,312 | 801 | $86,280 | 2% | 2 | Dec 28 | - | Metro-Goldwyn-Mayer (MGM) |
| 18 | Birdy | $1,455,045 | 18 | $13,720 | 0.9% | 1 | Dec 21 | - | TriStar Pictures |
