| Rank | LW | Release
| Gross | %± LW | Theaters | Change | Average | Total Gross | Weeks | Distributor
| New This Week
| Estimated
|
|---|
| 1 | - | Prince of Persia: The Sands of Time | $861,283 | - | 166 | - | $5,188 | $1,474,780 | 1 | Walt Disney Pictures | true | false |
| 2 | 1 | Poh Tak | $225,069 | -68.6% | 78 | -37 | $2,885 | $1,180,522 | 2 | Mongkol Film Company | false | false |
| 3 | 2 | Sex and the City 2 | $93,277 | -52.9% | 45 | -13 | $2,072 | $369,223 | 2 | Warner Bros. | false | false |
| 4 | 3 | Killers | $50,813 | -55.1% | 36 | -3 | $1,411 | $217,546 | 2 | Mongkol Major | false | false |
| 5 | 4 | Shrek Forever After | $45,958 | -56.1% | 38 | -19 | $1,209 | $668,793 | 4 | United International Pictures | false | false |
| 6 | - | Letters to Juliet | $19,864 | - | 5 | - | $3,972 | $19,864 | 1 | Mongkol Major | true | false |
| 7 | 9 | The Ghost Writer | $8,366 | -66.6% | 15 | +3 | $557 | $42,818 | 2 | N/A | false | false |
| 8 | 5 | Sam Yan | $5,390 | -88% | 23 | -25 | $234 | $791,856 | 4 | N/A | false | false |
| 9 | 7 | 14 Blades | $4,976 | -84.5% | 27 | +1 | $184 | $52,853 | 2 | M Pictures | false | false |
| 10 | 8 | Sin Sisters 2 | $3,031 | -89.5% | 18 | -26 | $168 | $186,150 | 3 | Mongkol Film Company | false | false |
| 11 | 6 | Robin Hood | $1,770 | -95.6% | 13 | -34 | $136 | $731,477 | 5 | United International Pictures | false | false |
| 12 | 13 | I Love You Phillip Morris | $1,428 | -57% | 5 | - | $285 | $32,995 | 4 | M Pictures | false | false |
| 13 | 11 | Iron Man 2 | $749 | -82.2% | 3 | -10 | $249 | $4,615,766 | 7 | United International Pictures | false | false |
| 14 | 12 | The Bounty Hunter | $298 | -92.7% | 2 | -6 | $149 | $156,244 | 5 | Sony Pictures Releasing | false | false |
| 15 | 17 | Agora | $120 | -64.4% | 1 | -1 | $120 | $17,639 | 10 | N/A | false | false |
| 16 | 10 | The Losers | $117 | -98.8% | 4 | -29 | $29 | $163,825 | 4 | Warner Bros. | false | false |
