| Rank | LW | Release
| Gross | %± LW | Theaters | Change | Average | Total Gross | Weeks | Distributor
| New This Week
| Estimated
|
|---|
| 1 | - | Mai Ka Mum | $336,731 | - | 71 | - | $4,742 | $336,731 | 1 | Mongkol Film Company | true | false |
| 2 | 1 | Green Lantern | $291,015 | -54% | 129 | -19 | $2,255 | $1,138,416 | 2 | Warner Bros. | false | false |
| 3 | 2 | X-Men: First Class | $95,204 | -43.5% | 69 | -13 | $1,379 | $2,428,735 | 4 | 20th Century Fox International | false | false |
| 4 | - | Dylan Dog: Dead of Night | $81,120 | - | 27 | - | $3,004 | $81,120 | 1 | M Pictures | true | false |
| 5 | 3 | Super 8 | $76,769 | -51.4% | 69 | -8 | $1,112 | $889,333 | 3 | United International Pictures | false | false |
| 6 | 5 | 3-D Sex and Zen: Extreme Ecstasy | $47,742 | -53.6% | 37 | -2 | $1,290 | $795,260 | 3 | M Pictures | false | false |
| 7 | 6 | Kung Fu Panda 2 | $40,477 | -44% | 44 | -1 | $919 | $2,212,796 | 5 | United International Pictures | false | false |
| 8 | 4 | Small Ru Gu Naew | $34,861 | -67.6% | 43 | -7 | $810 | $476,297 | 3 | Pranakorn Films | false | false |
| 9 | 7 | Pirates of the Caribbean: On Stranger Tides | $23,126 | -18.2% | 18 | -10 | $1,284 | $3,651,168 | 6 | Walt Disney Pictures | false | false |
| 10 | 8 | The Hangover Part II | $16,514 | -41.3% | 11 | -10 | $1,501 | $852,674 | 5 | Warner Bros. | false | false |
| 11 | - | The Secret World of Arrietty | $6,673 | - | 1 | - | $6,673 | $6,673 | 1 | M Pictures | true | false |
| 12 | 9 | Insidious | $4,255 | -64.6% | 9 | -11 | $472 | $269,398 | 4 | Mongkol Major | false | false |
| 13 | - | The Conspirator | $3,417 | - | 1 | - | $3,417 | $3,417 | 1 | N/A | true | false |
| 14 | 11 | The Burma Conspiracy | $2,538 | -4.8% | 4 | -1 | $634 | $11,342 | 3 | N/A | false | false |
| 15 | 15 | The Beaver | $1,873 | +116.3% | 3 | - | $624 | $15,821 | 4 | Mongkol Major | false | false |
| 16 | 13 | Killing Bono | $936 | -44.1% | 3 | - | $312 | $4,099 | 2 | M Pictures | false | false |
| 17 | 14 | Fast Five | $360 | -76.5% | 2 | -1 | $180 | $4,793,226 | 8 | United International Pictures | false | false |
| 18 | 10 | Mr. and Mrs. Incredible | $288 | -92.6% | 3 | -8 | $96 | $23,800 | 3 | Mongkol Major | false | false |
