| Rank | LW | Release
| Gross | %± LW | Theaters | Change | Average | Total Gross | Weeks | Distributor
| New This Week
| Estimated
|
|---|
| 1 | - | Hostel | $160,063 | - | 33 | - | $4,850 | $160,063 | 1 | Sony Pictures Releasing | true | false |
| 2 | - | Æon Flux | $137,652 | - | 39 | - | $3,529 | $137,652 | 1 | United International Pictures | true | false |
| 3 | 1 | Walk the Line | $132,398 | -13.2% | 50 | - | $2,647 | $751,099 | 3 | 20th Century Fox International | false | false |
| 4 | 2 | Big Momma's House 2 | $94,424 | -37.8% | 50 | - | $1,888 | $277,969 | 2 | 20th Century Fox International | false | false |
| 5 | 4 | Brokeback Mountain | $84,829 | -7.3% | 19 | +1 | $4,464 | $352,964 | 3 | Roadshow Films | false | false |
| 6 | 3 | Naming Number Two | $76,980 | -28.2% | 38 | - | $2,025 | $230,614 | 2 | Buena Vista International | false | false |
| 7 | - | The Producers | $58,405 | - | 33 | - | $1,769 | $58,405 | 1 | Sony Pictures Releasing | true | false |
| 8 | - | Syriana | $46,640 | - | 15 | - | $3,109 | $46,640 | 1 | Warner Bros. | true | false |
| 9 | - | Goal! The Dream Begins | $32,743 | - | 40 | - | $818 | $32,743 | 1 | Roadshow Films | true | false |
| 10 | 15 | Capote | $23,441 | +67.1% | 10 | +1 | $2,344 | $48,616 | 2 | Sony Pictures Releasing | false | false |
| 11 | 5 | Jarhead | $22,895 | -65.8% | 39 | -5 | $587 | $273,439 | 3 | United International Pictures | false | false |
| 12 | 8 | The World's Fastest Indian | $20,537 | -32.2% | 48 | -12 | $427 | $4,518,354 | 20 | - | false | false |
| 13 | 11 | The Constant Gardener | $20,527 | -10.9% | 23 | -6 | $892 | $750,914 | 15 | United International Pictures | false | false |
| 14 | 7 | River Queen | $20,156 | -40.9% | 33 | -4 | $610 | $576,669 | 5 | 20th Century Fox International | false | false |
| 15 | - | Separate Lies | $19,700 | - | 10 | - | $1,970 | $19,700 | 1 | 20th Century Fox International | true | false |
| 16 | - | Me and You and Everyone We Know | $19,198 | - | 3 | - | $6,399 | $19,198 | 1 | Hoyts Distribution | true | false |
| 17 | 6 | North Country | $17,527 | -59.7% | 34 | -11 | $515 | $355,951 | 4 | Warner Bros. | false | false |
| 18 | 12 | The Chronicles of Narnia: The Lion, the Witch and the Wardrobe | $16,714 | -25.8% | 47 | -13 | $355 | $5,599,603 | 12 | Buena Vista International | false | false |
| 19 | 9 | Memoirs of a Geisha | $10,288 | -61.9% | 27 | -12 | $381 | $752,088 | 6 | Roadshow Films | false | false |
| 20 | 10 | King Kong | $9,982 | -59.5% | 30 | -20 | $332 | $5,826,931 | 11 | United International Pictures | false | false |
