| Rank | LW | Release
| Gross | %± LW | Theaters | Change | Average | Total Gross | Weeks | Distributor
| New This Week
| Estimated
|
|---|
| 1 | - | Bangkok Dangerous | $345,087 | - | 92 | - | $3,750 | $345,087 | 1 | Mongkol Film Company | true | false |
| 2 | - | Tevada tokmun | $299,506 | - | 75 | - | $3,993 | $299,506 | 1 | RS Film & Distribution | true | false |
| 3 | 1 | Boon Chu I Love Sara U | $274,617 | -43.3% | 70 | -32 | $3,923 | $916,080 | 2 | Five Star Entertainment | false | false |
| 4 | 4 | Made of Honor | $67,241 | -43.8% | 34 | - | $1,977 | $264,712 | 2 | Sony Pictures Releasing | false | false |
| 5 | 5 | Mamma Mia! | $60,236 | -35.6% | 27 | -2 | $2,230 | $183,353 | 2 | United International Pictures | false | false |
| 6 | 3 | Death Race | $55,998 | -66.6% | 58 | -11 | $965 | $706,774 | 3 | United International Pictures | false | false |
| 7 | 2 | The Coffin 2008 Re-release | $54,809 | -71.4% | 51 | -9 | $1,074 | $872,357 | 3 | N/A | false | false |
| 8 | 6 | Boys Over Flowers: Final | $30,029 | -63.5% | 33 | +1 | $909 | $129,736 | 2 | M Pictures | false | false |
| 9 | 7 | WALL·E | $20,251 | -71.7% | 37 | -18 | $547 | $1,198,938 | 4 | Walt Disney Pictures | false | false |
| 10 | 8 | The Deaths of Ian Stone | $14,943 | -68.7% | 31 | +3 | $482 | $79,195 | 2 | Mongkol Major | false | false |
| 11 | 11 | The Dark Knight | $7,817 | -39.6% | 3 | -2 | $2,605 | $2,587,725 | 8 | Warner Bros. | false | false |
| 12 | 12 | Journey to the Center of the Earth | $5,019 | -29.4% | 5 | - | $1,003 | $1,133,465 | 7 | Mongkol Major | false | false |
| 13 | - | Sukiyaki Western Django | $2,550 | - | 2 | - | $1,275 | $2,550 | 1 | M Pictures | true | false |
| 14 | 9 | Where the Miracle Happens | $1,977 | -86.2% | 12 | -30 | $164 | $807,711 | 5 | GMM Tai Hub (GTH) | false | false |
| 15 | - | In Bruges | $1,788 | - | 1 | - | $1,788 | $1,788 | 1 | J-Bics | true | false |
| 16 | 10 | The Mummy: Tomb of the Dragon Emperor | $1,091 | -92.2% | 7 | -23 | $155 | $3,564,386 | 6 | United International Pictures | false | false |
| 17 | 14 | Evangelion: 1.0 You Are (Not) Alone | $664 | -61.1% | 1 | - | $664 | $8,264 | 3 | N/A | false | false |
| 18 | 15 | Rogue | $70 | -87.8% | 1 | -4 | $70 | $160,906 | 4 | N/A | false | false |
| 19 | - | Hanuman klook foon | $18 | - | 1 | - | $18 | $306,553 | 4 | Pranakorn Films | false | false |
