| Rank | LW | Release
| Gross | %± LW | Theaters | Change | Average | Total Gross | Weeks | Distributor
| New This Week
| Estimated
|
|---|
| 1 | - | The Golden Compass | $834,026 | - | 180 | - | $4,633 | $1,325,519 | 1 | Mongkol Major | true | false |
| 2 | 1 | Ponglang Amazing Theater | $435,583 | -53.6% | 90 | -82 | $4,839 | $1,853,644 | 2 | RS Film & Distribution | false | false |
| 3 | - | The Life of Buddha | $148,512 | - | 48 | - | $3,094 | $236,980 | 1 | N/A | true | false |
| 4 | - | The Screen at Kamchanod | $136,011 | - | 58 | - | $2,345 | $219,590 | 1 | Five Star Entertainment | true | false |
| 5 | 2 | Love of Siam | $60,676 | -74.5% | 44 | -56 | $1,379 | $1,198,637 | 3 | Mongkol Film Company | false | false |
| 6 | - | Bee Movie | $42,521 | - | 36 | - | $1,181 | $66,342 | 1 | United International Pictures | true | false |
| 7 | 3 | Beowulf | $14,837 | -83.6% | 7 | -59 | $2,119 | $1,439,350 | 4 | Warner Bros. | false | false |
| 8 | 5 | No Reservations | $14,069 | -63.3% | 10 | - | $1,406 | $71,545 | 2 | Warner Bros. | false | false |
| 9 | 4 | Breach | $10,162 | -78.1% | 25 | -1 | $406 | $73,018 | 2 | Mongkol Major | false | false |
| 10 | 9 | Lust, Caution | $4,347 | -39.4% | 7 | - | $621 | $31,972 | 3 | Walt Disney Pictures | false | false |
| 11 | 8 | The Game Plan | $1,652 | -81.7% | 5 | -13 | $330 | $326,234 | 5 | Walt Disney Pictures | false | false |
| 12 | 12 | Kitaro | $1,045 | -48.4% | 1 | - | $1,045 | $4,172 | 2 | J-Bics | false | false |
| 13 | 6 | Michael Clayton | $207 | -98.4% | 1 | -26 | $207 | $154,105 | 4 | Mongkol Major | false | false |
