| Rank | LW | Release
| Gross | %± LW | Theaters | Change | Average | Total Gross | Weeks | Distributor
| New This Week
| Estimated
|
|---|
| 1 | - | Step Up 2: The Streets | $395,624 | - | 65 | - | $6,086 | $395,624 | 1 | Mongkol Major | true | false |
| 2 | - | The Spiderwick Chronicles | $302,872 | - | 81 | - | $3,739 | $302,872 | 1 | United International Pictures | true | false |
| 3 | 1 | 10,000 BC | $296,163 | -65.7% | 113 | -58 | $2,620 | $1,807,657 | 2 | Warner Bros. | false | false |
| 4 | - | Rambo | $197,529 | - | 71 | - | $2,782 | $197,529 | 1 | N/A | true | false |
| 5 | 2 | The Ghost and Master Boh | $41,233 | -59.1% | 45 | -11 | $916 | $525,383 | 3 | Pranakorn Films | false | false |
| 6 | 5 | Soul's Code | $28,126 | -57.7% | 37 | -15 | $760 | $304,464 | 3 | N/A | false | false |
| 7 | 6 | Pirate of the Lost Sea | $21,517 | -54% | 49 | -3 | $439 | $86,560 | 2 | Mongkol Film Company | false | false |
| 8 | 4 | The Mist | $21,022 | -72.4% | 37 | -15 | $568 | $458,184 | 3 | M Pictures | false | false |
| 9 | 3 | Jumper | $19,875 | -75.9% | 42 | -17 | $473 | $2,070,320 | 4 | 20th Century Fox International | false | false |
| 10 | 7 | No Country for Old Men | $6,757 | -45.8% | 3 | -1 | $2,252 | $88,688 | 4 | United International Pictures | false | false |
| 11 | 11 | Once | $4,522 | -19.4% | 1 | - | $4,522 | $21,738 | 3 | Mongkol Major | false | false |
| 12 | 8 | P2 | $3,493 | -66.1% | 10 | -6 | $349 | $54,312 | 3 | Mongkol Major | false | false |
| 13 | 14 | The Kite Runner | $2,925 | -14.3% | 1 | - | $2,925 | $7,729 | 2 | United International Pictures | false | false |
| 14 | 12 | 27 Dresses | $2,280 | -51.9% | 5 | - | $456 | $246,539 | 5 | 20th Century Fox International | false | false |
| 15 | 16 | There Will Be Blood | $2,089 | -22.5% | 1 | - | $2,089 | $16,717 | 4 | N/A | false | false |
| 16 | 13 | Dan in Real Life | $1,406 | -69% | 1 | - | $1,406 | $9,807 | 2 | M Pictures | false | false |
| 17 | 17 | P.S. I Love You | $1,215 | -54.8% | 3 | -1 | $405 | $224,180 | 5 | Mongkol Major | false | false |
| 18 | 22 | Beowulf | $1,004 | -8.9% | 1 | - | $1,004 | $1,469,598 | 18 | Warner Bros. | false | false |
| 19 | 10 | Kung Fu Dunk | $783 | -91.4% | 8 | -19 | $97 | $210,767 | 4 | N/A | false | false |
| 20 | 20 | Charlie Wilson's War | $752 | -51.5% | 2 | -3 | $376 | $177,910 | 5 | United International Pictures | false | false |
| 21 | 24 | Sky of Love | $648 | +32.2% | 1 | - | $648 | $18,931 | 5 | Mongkol Major | false | false |
| 22 | 18 | Atonement | $622 | -73% | 3 | -2 | $207 | $86,869 | 6 | United International Pictures | false | false |
| 23 | 15 | Chocolate | $459 | -85.8% | 2 | -8 | $229 | $2,029,792 | 6 | Mongkol Film Company | false | false |
| 24 | 23 | The 8th Day | $359 | -64% | 1 | -3 | $359 | $9,958 | 3 | N/A | false | false |
| 25 | 19 | Handle Me with Care | $171 | -91.9% | 2 | -12 | $85 | $182,448 | 4 | GMM Tai Hub (GTH) | false | false |
| 26 | 9 | Valentine | $159 | -98.4% | 1 | -29 | $159 | $571,126 | 5 | N/A | false | false |
