| Rank | LW | Release
| Gross | %± LW | Theaters | Change | Average | Total Gross | Weeks | Distributor
| New This Week
| Estimated
|
|---|
| 1 | - | Walk the Line | $1,554,954 | - | 249 | - | $6,244 | $1,975,057 | 1 | 20th Century Fox International | true | false |
| 2 | 2 | Munich | $791,894 | -41.1% | 223 | +51 | $3,551 | $2,581,770 | 2 | United International Pictures | false | false |
| 3 | 4 | Brokeback Mountain | $750,158 | -36.5% | 48 | - | $15,628 | $2,373,353 | 2 | Roadshow Films | false | false |
| 4 | 1 | Big Momma's House 2 | $721,940 | -51.8% | 189 | +170 | $3,819 | $2,844,055 | 2 | 20th Century Fox International | false | false |
| 5 | 3 | Memoirs of a Geisha | $711,195 | -44.3% | 200 | - | $3,555 | $5,526,481 | 3 | Roadshow Films | false | false |
| 6 | 8 | Keeping Mum | $414,934 | -42.6% | 191 | +1 | $2,172 | $1,422,216 | 2 | Icon Film Distribution | false | false |
| 7 | 6 | Underworld: Evolution | $341,950 | -55% | 155 | -3 | $2,206 | $3,495,575 | 3 | Sony Pictures Releasing | false | false |
| 8 | 7 | The Chronicles of Narnia: The Lion, the Witch and the Wardrobe | $312,393 | -57.3% | 226 | -52 | $1,382 | $25,601,961 | 6 | Buena Vista International | false | false |
| 9 | - | North Country | $247,654 | - | 91 | - | $2,721 | $247,654 | 1 | Warner Bros. | true | false |
| 10 | 5 | Nanny McPhee | $244,546 | -68.5% | 199 | +9 | $1,228 | $5,836,395 | 4 | United International Pictures | false | false |
| 11 | - | The Fog | $234,196 | - | 81 | - | $2,891 | $234,196 | 1 | Sony Pictures Releasing | true | false |
| 12 | 15 | Mrs. Henderson Presents | $157,255 | -24.3% | 92 | +7 | $1,709 | $3,258,133 | 6 | Hoyts Distribution | false | false |
| 13 | 12 | The Producers | $145,060 | -60.5% | 146 | -36 | $993 | $3,153,520 | 4 | Sony Pictures Releasing | false | false |
| 14 | 11 | Rumor Has It... | $133,937 | -63.5% | 146 | -75 | $917 | $5,997,078 | 5 | Roadshow Films | false | false |
| 15 | 13 | Get Rich or Die Tryin' | $133,821 | -54.1% | 102 | -16 | $1,311 | $1,560,349 | 3 | United International Pictures | false | false |
| 16 | 14 | The Family Stone | $118,351 | -47.6% | 96 | -21 | $1,232 | $3,570,354 | 6 | 20th Century Fox International | false | false |
| 17 | 9 | Chicken Little | $113,057 | -73.2% | 196 | -75 | $576 | $9,896,332 | 6 | Buena Vista International | false | false |
| 18 | 20 | Good Night, and Good Luck. | $97,310 | -18.6% | 41 | +2 | $2,373 | $1,819,776 | 8 | Dendy Films | false | false |
| 19 | - | The Constant Gardener | $57,073 | - | 43 | - | $1,327 | $3,142,610 | 12 | United International Pictures | false | false |
| 20 | 17 | King Kong | $49,714 | -68.7% | 39 | -62 | $1,274 | $15,985,810 | 8 | United International Pictures | false | false |
