| Rank | LW | Release
| Gross | %± LW | Theaters | Change | Average | Total Gross | Weeks | Distributor
| New This Week
| Estimated
|
|---|
| 1 | - | I Am Legend | $1,065,008 | - | 150 | - | $7,100 | $1,390,268 | 1 | Warner Bros. | true | false |
| 2 | 1 | The Golden Compass | $257,316 | -69.1% | 105 | -75 | $2,450 | $1,933,161 | 2 | Mongkol Major | false | false |
| 3 | - | The Warlords | $245,803 | - | 70 | - | $3,511 | $245,803 | 1 | Mongkol Major | true | false |
| 4 | 2 | Ponglang Amazing Theater | $187,907 | -56.9% | 56 | -34 | $3,355 | $2,271,433 | 3 | RS Film & Distribution | false | false |
| 5 | 3 | The Life of Buddha | $69,299 | -53.3% | 52 | +4 | $1,332 | $388,402 | 2 | N/A | false | false |
| 6 | 4 | The Screen at Kamchanod | $50,659 | -62.8% | 56 | -2 | $904 | $345,974 | 2 | Five Star Entertainment | false | false |
| 7 | 6 | Bee Movie | $16,288 | -61.7% | 31 | -5 | $525 | $109,105 | 2 | United International Pictures | false | false |
| 8 | 5 | Love of Siam | $16,113 | -73.4% | 18 | -26 | $895 | $1,245,641 | 4 | Mongkol Film Company | false | false |
| 9 | 10 | Lust, Caution | $3,120 | -28.2% | 3 | -4 | $1,040 | $37,912 | 4 | Walt Disney Pictures | false | false |
| 10 | 7 | Beowulf | $2,615 | -82.4% | 2 | -5 | $1,307 | $1,453,334 | 5 | Warner Bros. | false | false |
| 11 | 8 | No Reservations | $1,445 | -89.7% | 2 | -8 | $722 | $82,625 | 3 | Warner Bros. | false | false |
| 12 | 9 | Breach | $995 | -90.2% | 5 | -20 | $199 | $79,909 | 3 | Mongkol Major | false | false |
| 13 | 12 | Kitaro | $454 | -56.6% | 1 | - | $454 | $5,223 | 3 | J-Bics | false | false |
