| Rank | LW | Release
| Gross | %± LW | Theaters | Change | Average | Total Gross | Weeks | Distributor
| New This Week
| Estimated
|
|---|
| 1 | - | Fast & Furious | $1,136,703 | - | 157 | - | $7,240 | $1,136,703 | 1 | United International Pictures | true | false |
| 2 | 1 | Elephant Kingdom | $353,677 | -50% | 93 | -67 | $3,802 | $1,305,829 | 2 | N/A | false | false |
| 3 | - | Sassy Player | $232,244 | - | 59 | - | $3,936 | $232,244 | 1 | Pranakorn Films | true | false |
| 4 | 2 | Knowing | $197,990 | -67.1% | 74 | -45 | $2,675 | $1,016,910 | 2 | Mongkol Major | false | false |
| 5 | - | Shinjuku Incident | $122,292 | - | 60 | - | $2,038 | $122,292 | 1 | Mongkol Major | true | false |
| 6 | 4 | Best of Times | $8,951 | -83.6% | 23 | -26 | $389 | $1,389,403 | 5 | GMM Tai Hub (GTH) | false | false |
| 7 | 8 | New in Town | $4,560 | -66.5% | 6 | -11 | $760 | $67,509 | 3 | N/A | false | false |
| 8 | 3 | Meat Grinder | $4,548 | -93.2% | 20 | -30 | $227 | $378,963 | 3 | Pranakorn Films | false | false |
| 9 | 13 | The Great Buck Howard | $3,362 | -10.7% | 1 | - | $3,362 | $9,107 | 2 | Mongkol Major | false | false |
| 10 | 11 | 20th Century Boys 2: The Last Hope | $3,284 | -46.8% | 3 | - | $1,094 | $12,350 | 2 | M Pictures | false | false |
| 11 | 12 | Slumdog Millionaire | $3,198 | -31.9% | 1 | - | $3,198 | $76,853 | 5 | N/A | false | false |
| 12 | 9 | Seven Pounds | $2,998 | -75.4% | 4 | -6 | $749 | $67,932 | 3 | Sony Pictures Releasing | false | false |
| 13 | 15 | The Pink Panther 2 | $1,926 | -29.9% | 1 | - | $1,926 | $37,460 | 6 | Sony Pictures Releasing | false | false |
| 14 | 10 | Watchmen | $1,742 | -78.8% | 4 | -22 | $435 | $750,406 | 5 | United International Pictures | false | false |
| 15 | 7 | Make It Happen | $1,466 | -90% | 7 | -6 | $209 | $87,261 | 3 | M Pictures | false | false |
| 16 | 6 | Anueng Kidthung Penyangying | $474 | -97.4% | 6 | -40 | $79 | $397,663 | 4 | Five Star Entertainment | false | false |
| 17 | 17 | The Reader | $364 | -70.2% | 1 | -1 | $364 | $84,338 | 8 | M Pictures | false | false |
| 18 | 16 | Milk | $361 | -72.5% | 1 | -1 | $361 | $48,590 | 6 | M Pictures | false | false |
| 19 | 21 | Doubt | $282 | -0.7% | 1 | - | $282 | $13,341 | 7 | Walt Disney Pictures | false | false |
| 20 | 19 | The Curious Case of Benjamin Button | $164 | -66.2% | 1 | -2 | $164 | $547,545 | 8 | Warner Bros. | false | false |
| 21 | 22 | The Wrestler | $160 | -34.7% | 1 | -1 | $160 | $21,599 | 7 | M Pictures | false | false |
| 22 | 5 | Dragonball Evolution | $43 | -99.8% | 2 | -57 | $21 | $907,264 | 4 | 20th Century Fox International | false | false |
| 23 | 24 | Outlander | $42 | -75.9% | 1 | -2 | $42 | $294,984 | 6 | Mongkol Major | false | false |
