| Rank | LW | Release
| Gross | %± LW | Theaters | Change | Average | Total Gross | Weeks | Distributor
| New This Week
| Estimated
|
|---|
| 1 | - | Bangkok Assassins | $235,055 | - | 53 | - | $4,435 | $235,055 | 1 | RS Film & Distribution | true | false |
| 2 | 1 | Cowboys & Aliens | $207,594 | -58.2% | 80 | -30 | $2,594 | $859,005 | 2 | United International Pictures | false | false |
| 3 | - | Fright Night | $178,467 | - | 55 | - | $3,244 | $178,467 | 1 | Walt Disney Pictures | true | false |
| 4 | - | Love, Not Yet | $158,782 | - | 40 | - | $3,969 | $158,782 | 1 | N/A | true | false |
| 5 | - | Colombiana | $157,846 | - | 52 | - | $3,035 | $157,846 | 1 | Mongkol Major | true | false |
| 6 | 4 | Conan the Barbarian | $106,621 | -46.8% | 56 | -8 | $1,903 | $391,323 | 2 | Mongkol Major | false | false |
| 7 | 3 | King Naresuan 4 | $102,303 | -62.6% | 48 | -25 | $2,131 | $4,343,349 | 4 | Mongkol Film Company | false | false |
| 8 | 2 | Final Destination 5 | $81,239 | -75% | 36 | -43 | $2,256 | $1,575,479 | 3 | Warner Bros. | false | false |
| 9 | 5 | Kon Khon | $50,584 | -63.1% | 44 | - | $1,149 | $229,928 | 2 | Mongkol Film Company | false | false |
| 10 | 6 | One Day | $37,389 | -57.2% | 13 | -9 | $2,876 | $333,885 | 3 | M Pictures | false | false |
| 11 | - | Mr. Popper's Penguins | $35,018 | - | 9 | - | $3,890 | $35,018 | 1 | N/A | true | false |
| 12 | 8 | Bad Teacher | $8,303 | -75.4% | 4 | -17 | $2,075 | $450,961 | 4 | Sony Pictures Releasing | false | false |
| 13 | 7 | Rise of the Planet of the Apes | $5,061 | -88.3% | 5 | -35 | $1,012 | $1,609,802 | 5 | 20th Century Fox International | false | false |
| 14 | 11 | Harry Potter and the Deathly Hallows: Part 2 | $3,315 | -38.7% | 1 | -2 | $3,315 | $6,698,057 | 8 | Warner Bros. | false | false |
| 15 | - | Trust | $3,178 | - | 1 | - | $3,178 | $3,178 | 1 | M Pictures | true | false |
| 16 | - | Ceremony | $3,111 | - | 2 | - | $1,555 | $3,111 | 1 | Mongkol Major | true | false |
| 17 | 10 | Transformers: Dark of the Moon | $2,988 | -59% | 1 | -1 | $2,988 | $9,700,025 | 10 | United International Pictures | false | false |
| 18 | 12 | Come Rain, Come Shine | $1,153 | -46.7% | 1 | - | $1,153 | $10,425 | 3 | Mongkol Major | false | false |
| 19 | 13 | Tomboy | $534 | -61.7% | 1 | - | $534 | $9,499 | 4 | M Pictures | false | false |
