Domestic Box Office For December 2009
| Rank | Release | Gross | Max Th | Opening | % of Total | Open Th | Open | Close | Distributor |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Avatar | $749,766,139 | 3,461 | $77,025,481 | 10.3% | 3,452 | Dec 18 | Aug 12 | Twentieth Century Fox |
| 2 | Alvin and the Chipmunks: The Squeakquel | $219,614,612 | 3,747 | $48,875,415 | 22.3% | 3,700 | Dec 23 | May 20 | Twentieth Century Fox |
| 3 | Sherlock Holmes | $209,028,679 | 3,626 | $62,304,277 | 29.8% | 3,626 | Dec 25 | Apr 29 | Warner Bros. |
| 4 | It's Complicated | $112,735,375 | 2,955 | $22,100,820 | 19.6% | 2,887 | Dec 25 | Apr 1 | Universal Pictures |
| 5 | Up in the Air | $83,823,381 | 2,218 | $1,181,450 | 1.4% | 15 | Dec 4 | Apr 8 | Paramount Pictures |
| 6 | The Lovely Bones | $44,114,232 | 2,638 | $116,616 | 0.3% | 3 | Dec 11 | Mar 18 | DreamWorks |
| 7 | Crazy Heart | $39,464,306 | 1,361 | $82,664 | 0.2% | 4 | Dec 16 | Jun 3 | Fox Searchlight Pictures |
| 8 | Invictus | $37,491,364 | 2,170 | $8,611,147 | 23% | 2,125 | Dec 11 | Mar 25 | Warner Bros. |
| 9 | Did You Hear About the Morgans? | $29,580,087 | 2,718 | $6,616,571 | 22.4% | 2,718 | Dec 18 | Jan 24 | Sony Pictures Releasing |
| 10 | Brothers | $28,544,157 | 2,088 | $9,527,848 | 33.4% | 2,088 | Dec 4 | Jan 21 | Lionsgate |
| 11 | Nine | $19,676,965 | 1,412 | $257,232 | 1.3% | 4 | Dec 18 | Mar 18 | The Weinstein Company |
| 12 | Armored | $15,988,876 | 1,919 | $6,511,128 | 40.7% | 1,915 | Dec 4 | Jan 10 | Screen Gems |
| 13 | The Young Victoria | $11,001,272 | 476 | $260,591 | 2.4% | 44 | Dec 18 | Apr 29 | Apparition |
| 14 | Everybody's Fine | $9,208,876 | 2,141 | $3,852,068 | 41.8% | 2,133 | Dec 4 | Dec 24 | Miramax |
| 15 | A Single Man | $9,176,000 | 354 | $217,332 | 2.4% | 9 | Dec 11 | Apr 29 | The Weinstein Company |
| 16 | The Imaginarium of Doctor Parnassus | $7,689,607 | 607 | $415,233 | 5.4% | 48 | Dec 25 | May 27 | Sony Pictures Classics |
| 17 | 3 Idiots | $6,532,874 | 156 | $1,645,502 | 25.2% | 119 | Dec 23 | Mar 11 | Reliance Big Pictures |
| 18 | The White Ribbon | $2,222,862 | 106 | $59,848 | 2.7% | 3 | Dec 30 | Jun 3 | Sony Pictures Classics |
| 19 | Transylmania | $397,641 | 1,007 | $263,941 | 66.4% | 1,007 | Dec 4 | Dec 17 | Full Circle Releasing |
| 20 | Larger Than Life in | $246,042 | 509 | $246,042 | 100% | 509 | Dec 11 | Dec 13 | Cinedigm Entertainment Group |
| 21 | Paa | $199,228 | 67 | $199,228 | 100% | 67 | Dec 4 | Dec 10 | - |
| 22 | A Town Called Panic | $165,509 | 10 | $2,850 | 1.7% | 1 | Dec 16 | Jul 22 | Zeitgeist Films |
| 23 | Until the Light Takes Us | $130,441 | 3 | $7,246 | 5.6% | 1 | Dec 4 | Apr 29 | Variance Films |
| 24 | Police, Adjective | $53,206 | 8 | $19,452 | 36.6% | 8 | Dec 23 | Jan 7 | IFC Films |
| 25 | The Slammin' Salmon | $41,587 | 11 | $26,167 | 62.9% | 11 | Dec 11 | Jan 28 | Anchor Bay Films |
| 26 | Serious Moonlight | $25,339 | 8 | $11,636 | 45.9% | 8 | Dec 4 | Dec 31 | Magnolia Pictures |
| 27 | One Peace at a Time | $11,698 | 2 | $4,138 | 35.4% | 1 | Dec 4 | Dec 17 | Monterey Media |
| 28 | The Strip | $5,107 | 8 | $5,107 | 100% | 8 | Dec 4 | Dec 10 | Truly Indie |
| 29 | Ricky | $3,457 | 1 | $1,626 | 47% | 1 | Dec 16 | Dec 24 | IFC Films |
