| Rank | LW | Release
| Gross | %± LW | Theaters | Change | Average | Total Gross | Weeks | Distributor
| New This Week
| Estimated
|
|---|
| 1 | - | Enchanted | $408,395 | - | 36 | - | $11,344 | $448,731 | 1 | Walt Disney Pictures | true | false |
| 2 | 1 | Cloverfield | $153,631 | -72.4% | 86 | -49 | $1,786 | $831,043 | 2 | United International Pictures | false | false |
| 3 | - | The Flock | $120,472 | - | 50 | - | $2,409 | $120,472 | 1 | Mongkol Major | true | false |
| 4 | - | Busaba Bold & Beautiful | $102,431 | - | 58 | - | $1,766 | $102,431 | 1 | Pranakorn Films | true | false |
| 5 | 2 | Mam diaw hua liam hua laem | $69,598 | -64.5% | 55 | -25 | $1,265 | $958,340 | 3 | Mongkol Film Company | false | false |
| 6 | 4 | Saw IV | $51,060 | -47% | 45 | +7 | $1,134 | $186,143 | 2 | N/A | false | false |
| 7 | 3 | Hitman | $42,652 | -65.3% | 58 | -11 | $735 | $887,395 | 3 | 20th Century Fox International | false | false |
| 8 | - | Le Grand Chef | $32,900 | - | 20 | - | $1,645 | $32,900 | 1 | M Pictures | true | false |
| 9 | 5 | Mr. Magorium's Wonder Emporium | $29,853 | -64.5% | 25 | -3 | $1,194 | $139,401 | 2 | Mongkol Major | false | false |
| 10 | 8 | Eastern Promises | $6,290 | -52.8% | 6 | - | $1,048 | $25,805 | 2 | M Pictures | false | false |
| 11 | 6 | National Treasure: Book of Secrets | $5,404 | -74.1% | 13 | -28 | $415 | $2,804,903 | 6 | Walt Disney Pictures | false | false |
| 12 | 7 | Aliens vs. Predator: Requiem | $5,347 | -71.3% | 14 | -29 | $381 | $2,147,899 | 5 | 20th Century Fox International | false | false |
| 13 | 9 | Elizabeth: The Golden Age | $5,256 | -47.2% | 12 | -1 | $438 | $190,130 | 4 | N/A | false | false |
| 14 | 13 | Across the Universe | $3,838 | -27.6% | 1 | - | $3,838 | $33,205 | 4 | N/A | false | false |
| 15 | 11 | Inugami-ke no ichizoku 2008 Re-release | $2,659 | -56.6% | 2 | - | $1,329 | $26,853 | 3 | M Pictures | false | false |
| 16 | 16 | Beowulf | $1,795 | +35.4% | 1 | - | $1,795 | $1,539,496 | 11 | Warner Bros. | false | false |
| 17 | 10 | The Three Cripples | $677 | -91.3% | 5 | -22 | $135 | $1,011,396 | 5 | Pranakorn Films | false | false |
| 18 | 12 | Mr. Woodcock | $627 | -89.5% | 3 | -9 | $209 | $43,055 | 3 | Mongkol Major | false | false |
| 19 | 15 | I Am Legend | $499 | -71.7% | 2 | -2 | $249 | $2,658,824 | 7 | Warner Bros. | false | false |
| 20 | 19 | Lust, Caution | $296 | -33.9% | 1 | -1 | $296 | $50,418 | 10 | Walt Disney Pictures | false | false |
| 21 | 14 | Konbai the Movie | $267 | -93.5% | 3 | -17 | $89 | $910,258 | 5 | Mongkol Film Company | false | false |
