| Rank | LW | Release
| Gross | %± LW | Theaters | Change | Average | Total Gross | Weeks | Distributor
| New This Week
| Estimated
|
|---|
| 1 | - | Underworld: Evolution | $231,852 | - | 48 | - | $4,830 | $231,852 | 1 | Sony Pictures Releasing | true | false |
| 2 | - | The Pink Panther | $125,313 | - | 40 | - | $3,132 | $125,313 | 1 | 20th Century Fox International | true | false |
| 3 | 1 | Walk the Line | $107,375 | -27.5% | 50 | - | $2,147 | $1,268,832 | 6 | 20th Century Fox International | false | false |
| 4 | 2 | Date Movie | $62,954 | -48.2% | 40 | -10 | $1,573 | $423,892 | 3 | 20th Century Fox International | false | false |
| 5 | - | A History of Violence | $47,261 | - | 16 | - | $2,953 | $47,261 | 1 | Roadshow Films | true | false |
| 6 | 3 | Brokeback Mountain | $40,864 | -38.4% | 20 | +1 | $2,043 | $603,989 | 6 | Roadshow Films | false | false |
| 7 | - | The White Countess | $22,528 | - | 10 | - | $2,252 | $22,528 | 1 | Sony Pictures Releasing | true | false |
| 8 | 12 | Crash | $22,028 | -4.7% | 23 | +8 | $957 | $391,780 | 30 | Icon Film Distribution | false | false |
| 9 | 4 | Hostel | $19,806 | -63.6% | 30 | -3 | $660 | $430,870 | 4 | Sony Pictures Releasing | false | false |
| 10 | 5 | Wolf Creek | $19,553 | -53.8% | 38 | - | $514 | $79,162 | 2 | Roadshow Films | false | false |
| 11 | 7 | Naming Number Two | $18,651 | -47.8% | 28 | -7 | $666 | $397,464 | 5 | Buena Vista International | false | false |
| 12 | 11 | Syriana | $17,546 | -39.8% | 13 | -4 | $1,349 | $166,244 | 4 | Warner Bros. | false | false |
| 13 | - | The Weather Man | $15,797 | - | 33 | - | $478 | $15,797 | 1 | United International Pictures | true | false |
| 14 | 14 | The Constant Gardener | $12,575 | -38.2% | 28 | +1 | $449 | $808,599 | 18 | United International Pictures | false | false |
| 15 | 8 | Æon Flux | $12,542 | -62.4% | 25 | -11 | $501 | $313,914 | 4 | United International Pictures | false | false |
| 16 | 13 | Capote | $12,375 | -46% | 7 | -3 | $1,767 | $133,865 | 5 | Sony Pictures Releasing | false | false |
| 17 | 20 | River Queen | $11,936 | -8.2% | 33 | +8 | $361 | $617,299 | 8 | 20th Century Fox International | false | false |
| 18 | 6 | Firewall | $11,217 | -70.9% | 33 | -3 | $339 | $144,849 | 3 | Roadshow Films | false | false |
| 19 | 17 | The World's Fastest Indian | $9,536 | -36.4% | 37 | -3 | $257 | $4,520,403 | 23 | - | false | false |
| 20 | - | Proof | $7,627 | - | 7 | - | $1,089 | $23,266 | 1 | Buena Vista International | true | false |
