| Rank | LW | Release
| Gross | %± LW | Theaters | Change | Average | Total Gross | Weeks | Distributor
| New This Week
| Estimated
|
|---|
| 1 | 1 | Underworld: Rise of the Lycans | $267,113 | -61.4% | 65 | - | $4,109 | $1,235,143 | 2 | Sony Pictures Releasing | false | false |
| 2 | - | My Bloody Valentine | $261,903 | - | 65 | - | $4,029 | $261,903 | 1 | Mongkol Major | true | false |
| 3 | - | Push | $261,728 | - | 79 | - | $3,313 | $261,728 | 1 | United International Pictures | true | false |
| 4 | 2 | Before Valentine | $241,067 | -9.2% | 59 | -13 | $4,085 | $692,491 | 2 | Five Star Entertainment | false | false |
| 5 | - | The Curious Case of Benjamin Button | $183,599 | - | 62 | - | $2,961 | $203,031 | 1 | Warner Bros. | true | false |
| 6 | - | Confessions of a Shopaholic | $126,448 | - | 37 | - | $3,417 | $142,461 | 1 | Walt Disney Pictures | true | false |
| 7 | - | A Moment in June | $82,131 | - | 27 | - | $3,041 | $82,131 | 1 | Mongkol Film Company | true | false |
| 8 | 4 | Hod na hiaw 966 | $29,652 | -74.2% | 34 | -25 | $872 | $1,383,902 | 4 | RS Film & Distribution | false | false |
| 9 | 3 | Inkheart | $17,855 | -86.9% | 37 | -32 | $482 | $759,997 | 3 | Mongkol Major | false | false |
| 10 | - | The Reader | $12,316 | - | 4 | - | $3,079 | $13,274 | 1 | M Pictures | true | false |
| 11 | 5 | Red Cliff II | $12,129 | -83% | 23 | -34 | $527 | $1,171,931 | 4 | Mongkol Major | false | false |
| 12 | 7 | Revolutionary Road | $11,471 | -64.5% | 16 | -3 | $716 | $61,120 | 2 | United International Pictures | false | false |
| 13 | 6 | Fireball | $3,625 | -89.8% | 11 | -43 | $329 | $219,306 | 3 | Pranakorn Films | false | false |
| 14 | 11 | Happy-Go-Lucky | $625 | -51.4% | 1 | - | $625 | $19,777 | 7 | Mongkol Major | false | false |
| 15 | 12 | Madagascar: Escape 2 Africa | $537 | -55.1% | 1 | - | $537 | $691,947 | 8 | United International Pictures | false | false |
| 16 | 15 | The Day the Earth Stood Still | $342 | -39.3% | 1 | - | $342 | $1,517,523 | 10 | 20th Century Fox International | false | false |
| 17 | 14 | Faa sai jai cheun baan | $85 | -86.8% | 1 | -3 | $85 | $319,129 | 5 | N/A | false | false |
