| Rank | LW | Release
| Gross | %± LW | Theaters | Change | Average | Total Gross | Weeks | Distributor
| New This Week
| Estimated
|
|---|
| 1 | 1 | Bangkok Traffic (Love) Story | $190,959 | -56.3% | 94 | -11 | $2,031 | $4,238,148 | 4 | GMM Tai Hub (GTH) | false | false |
| 2 | 2 | This Is It | $94,928 | -42.2% | 24 | - | $3,955 | $323,381 | 2 | Sony Pictures Releasing | false | false |
| 3 | 3 | Surrogates | $86,071 | -40.9% | 79 | - | $1,089 | $1,059,154 | 3 | Walt Disney Pictures | false | false |
| 4 | 4 | Haunted Universities | $52,861 | -59.6% | 58 | +2 | $911 | $869,864 | 3 | Mongkol Film Company | false | false |
| 5 | - | The Box | $48,190 | - | 30 | - | $1,606 | $48,190 | 1 | M Pictures | true | false |
| 6 | 5 | The Rebound | $32,451 | -27.5% | 18 | - | $1,802 | $100,711 | 2 | Mongkol Major | false | false |
| 7 | - | Final Target | $24,850 | - | 58 | - | $428 | $24,850 | 1 | Mongkol Film Company | true | false |
| 8 | 9 | Scandal Makers | $19,596 | -21.7% | 21 | -1 | $933 | $57,246 | 2 | N/A | false | false |
| 9 | 7 | Ja-eh goy laew ja | $16,713 | -45.8% | 30 | -4 | $557 | $58,530 | 2 | N/A | false | false |
| 10 | 6 | My Dream Boat | $16,269 | -59.5% | 45 | -7 | $361 | $190,776 | 3 | Five Star Entertainment | false | false |
| 11 | 8 | Law Abiding Citizen | $14,896 | -45.3% | 26 | -14 | $572 | $397,187 | 4 | Mongkol Major | false | false |
| 12 | 10 | Doraemon the Movie: The New Records of Nobita's Spaceblazer | $11,289 | -51.9% | 11 | -5 | $1,026 | $40,519 | 2 | N/A | false | false |
| 13 | 11 | The Ugly Truth | $7,296 | -34% | 7 | -2 | $1,042 | $399,914 | 5 | Sony Pictures Releasing | false | false |
| 14 | - | The Brothers Bloom | $4,662 | - | 2 | - | $2,331 | $4,662 | 1 | N/A | true | false |
| 15 | 12 | New York, I Love You | $4,534 | -42.4% | 5 | - | $906 | $59,130 | 4 | N/A | false | false |
| 16 | 20 | Bad Lieutenant: Port of Call New Orleans | $3,773 | +1,000% | 5 | +3 | $754 | $34,321 | 5 | N/A | false | false |
| 17 | 14 | G-Force | $2,401 | -52.3% | 4 | -3 | $600 | $1,442,544 | 6 | Walt Disney Pictures | false | false |
| 18 | 15 | Taking Woodstock | $1,899 | -49.3% | 2 | - | $949 | $7,182 | 2 | M Pictures | false | false |
| 19 | 13 | The Scout | $1,468 | -80.3% | 29 | -4 | $50 | $11,424 | 2 | N/A | false | false |
| 20 | 16 | Kafû o machiwabite | $1,015 | -23.2% | 1 | - | $1,015 | $5,366 | 3 | Mongkol Major | false | false |
| 21 | 19 | Harry Potter and the Half-Blood Prince | $852 | +12% | 1 | - | $852 | $4,154,286 | 17 | Warner Bros. | false | false |
| 22 | 18 | The Echo | $441 | -53.1% | 1 | - | $441 | $2,385 | 2 | M Pictures | false | false |
| 23 | 21 | Transformers: Revenge of the Fallen | $401 | +20.4% | 1 | - | $401 | $6,034,198 | 20 | United International Pictures | false | false |
| 24 | 22 | Broken Embraces | $176 | -18.1% | 1 | - | $176 | $8,154 | 6 | M Pictures | false | false |
