| Rank | LW | Release
| Gross | %± LW | Theaters | Change | Average | Total Gross | Weeks | Distributor
| New This Week
| Estimated
|
|---|
| 1 | - | Rak/Saam/Sao | $665,623 | - | 99 | - | $6,723 | $665,623 | 1 | GMM Tai Hub (GTH) | true | false |
| 2 | 2 | Kung Fu Panda | $263,335 | -37.7% | 58 | -17 | $4,540 | $790,598 | 2 | United International Pictures | false | false |
| 3 | 1 | The Incredible Hulk | $248,624 | -60.6% | 79 | -31 | $3,147 | $1,039,043 | 2 | United International Pictures | false | false |
| 4 | - | Puppy Love | $217,655 | - | 65 | - | $3,348 | $217,655 | 1 | Mongkol Film Company | true | false |
| 5 | - | Get Smart | $212,382 | - | 64 | - | $3,318 | $321,560 | 1 | N/A | true | false |
| 6 | 3 | The Happening | $72,873 | -67.2% | 53 | -12 | $1,374 | $469,902 | 2 | 20th Century Fox International | false | false |
| 7 | 5 | Sex and the City | $27,720 | -68.9% | 22 | -14 | $1,260 | $463,759 | 3 | Warner Bros. | false | false |
| 8 | 4 | The Chronicles of Narnia: Prince Caspian | $16,866 | -82.7% | 35 | -36 | $481 | $2,353,754 | 4 | Walt Disney Pictures | false | false |
| 9 | - | Eiga: Kurosagi | $10,390 | - | 9 | - | $1,154 | $10,390 | 1 | M Pictures | true | false |
| 10 | 6 | Good Morning, Luang Prabang | $6,296 | -89.7% | 18 | -37 | $349 | $311,374 | 3 | N/A | false | false |
| 11 | 11 | 21 | $5,274 | +61.2% | 1 | - | $5,274 | $108,936 | 6 | Sony Pictures Releasing | false | false |
| 12 | 8 | Indiana Jones and the Kingdom of the Crystal Skull | $3,235 | -84.7% | 2 | -33 | $1,617 | $2,006,158 | 5 | United International Pictures | false | false |
| 13 | - | Mongol: The Rise of Genghis Khan | $2,256 | - | 1 | - | $2,256 | $2,256 | 1 | J-Bics | true | false |
| 14 | 9 | The Other Boleyn Girl | $1,646 | -88.6% | 4 | -16 | $411 | $90,921 | 3 | M Pictures | false | false |
| 15 | 7 | Muay Thai Giant | $876 | -98% | 10 | -41 | $87 | $254,269 | 3 | Mongkol Film Company | false | false |
| 16 | 10 | Death Sentence | $597 | -95% | 4 | -8 | $149 | $23,341 | 2 | M Pictures | false | false |
