Thai 2009 Weekend 36
September 3-6, 2009
Key:New This Week
| Rank | LW | Release | Gross | %± LW | Theaters | Change | Average | Total Gross | Weeks | Distributor |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | - | The Final Destination | $579,323 | - | 121 | - | $4,787 | $675,839 | 1 | Warner Bros. |
| 2 | 1 | My Ex | $314,555 | -55.7% | 95 | -20 | $3,311 | $1,283,159 | 2 | RS Film & Distribution |
| 3 | - | Gamer | $179,715 | - | 71 | - | $2,531 | $179,715 | 1 | M Pictures |
| 4 | 2 | G.I. Joe: The Rise of Cobra | $29,457 | -69.2% | 59 | -27 | $499 | $2,368,649 | 5 | United International Pictures |
| 5 | 4 | Inglourious Basterds | $24,979 | -64.4% | 36 | -16 | $693 | $281,438 | 3 | United International Pictures |
| 6 | 3 | Rahtree Revenge | $23,885 | -69.6% | 49 | -12 | $487 | $511,990 | 3 | Mongkol Film Company |
| 7 | - | Land of the Lost | $12,701 | - | 4 | - | $3,175 | $12,701 | 1 | United International Pictures |
| 8 | 8 | Coco Before Chanel | $8,320 | -36.6% | 5 | +2 | $1,664 | $52,064 | 3 | N/A |
| 9 | 5 | Orphan | $7,532 | -75.6% | 28 | -7 | $269 | $155,699 | 3 | Warner Bros. |
| 10 | 10 | Ponyo | $6,331 | -20.6% | 2 | - | $3,165 | $17,251 | 2 | M Pictures |
| 11 | 7 | Bandslam | $4,476 | -80.1% | 19 | -4 | $235 | $36,655 | 2 | Mongkol Major |
| 12 | 6 | Raging Phoenix | $2,961 | -88.3% | 25 | -36 | $118 | $678,912 | 4 | Mongkol Film Company |
| 13 | 12 | The Hangover | $2,430 | -47.5% | 4 | - | $607 | $126,912 | 6 | Warner Bros. |
| 14 | 11 | Harry Potter and the Half-Blood Prince | $2,387 | -64.5% | 1 | -7 | $2,387 | $4,069,786 | 8 | Warner Bros. |
| 15 | 9 | In Country Melody 2 | $1,892 | -84.6% | 14 | -34 | $135 | $383,830 | 4 | Pranakorn Films |
| 16 | 18 | Transformers: Revenge of the Fallen | $1,476 | +85.4% | 1 | -9 | $1,476 | $5,917,127 | 11 | United International Pictures |
| 17 | 15 | Brüno | $1,205 | -45.6% | 2 | -1 | $602 | $66,223 | 6 | Mongkol Major |
| 18 | 13 | Echelon Conspiracy | $772 | -81.1% | 4 | +1 | $193 | $15,977 | 6 | N/A |
| 19 | 14 | Trail of the Panda 2009 Re-release | $544 | -84.5% | 5 | -16 | $108 | $93,021 | 4 | Walt Disney Pictures |
| 20 | - | Sam Chuk | $307 | - | 10 | - | $30 | $79,817 | 5 | N/A |
| 21 | 20 | Departures | $256 | -48.7% | 1 | - | $256 | $30,324 | 12 | Mongkol Major |
