| Rank | Release
| Genre
| Budget
| Running Time
| Gross | Theaters | Total Gross | Release Date | Distributor
| Estimated
|
|---|
| 1 | The Mummy: Tomb of the Dragon Emperor | - | - | - | $3,641,144 | 250 | $3,642,139 | Jul 31 | United International Pictures | false |
| 2 | Where the Miracle Happens | - | - | - | $817,599 | 170 | $814,780 | Aug 7 | GMM Tai Hub (GTH) | false |
| 3 | WALL·E | - | - | - | $803,780 | 117 | $1,339,508 | Aug 12 | Walt Disney Pictures | false |
| 4 | The Coffin 2008 Re-release | - | - | - | $780,507 | 97 | $890,499 | Aug 21 | - | false |
| 5 | Death Race | - | - | - | $606,084 | 94 | $774,741 | Aug 21 | United International Pictures | false |
| 6 | Boon Chu I Love Sara U | - | - | - | $484,010 | 102 | $1,261,188 | Aug 28 | Five Star Entertainment | false |
| 7 | Journey to the Center of the Earth | - | - | - | $439,952 | 113 | $1,157,727 | Jul 24 | Mongkol Major | false |
| 8 | The Dark Knight | - | - | - | $432,684 | 145 | $2,633,488 | Jul 17 | Warner Bros. | false |
| 9 | Hancock | - | - | - | $346,360 | 44 | $2,652,118 | Jul 2 | Sony Pictures Releasing | false |
| 10 | Hanuman klook foon | - | - | - | $194,302 | 62 | $306,553 | Aug 12 | Pranakorn Films | false |
| 11 | Shaolin Girl | - | - | - | $132,791 | 40 | $132,791 | Aug 7 | Mongkol Major | false |
| 12 | Made of Honor | - | - | - | $119,662 | 34 | $353,834 | Aug 28 | Sony Pictures Releasing | false |
| 13 | Rogue | - | - | - | $117,228 | 40 | $160,906 | Aug 14 | - | false |
| 14 | Virgin Territory | - | - | - | $101,655 | 19 | $122,256 | Aug 12 | Mongkol Major | false |
| 15 | Mamma Mia! | - | - | - | $93,478 | 29 | $301,547 | Aug 28 | United International Pictures | false |
| 16 | Boys Over Flowers: Final | - | - | - | $82,287 | 33 | $145,514 | Aug 28 | M Pictures | false |
| 17 | The Deaths of Ian Stone | - | - | - | $47,709 | 31 | $87,006 | Aug 28 | Mongkol Major | false |
| 18 | Wo maba maha sanuk | - | - | - | $44,936 | 69 | $773,672 | Jul 17 | Mongkol Film Company | false |
| 19 | The Strangers | - | - | - | $39,422 | 40 | $145,344 | Jul 24 | M Pictures | false |
| 20 | Red Cliff | - | - | - | $25,153 | 83 | $944,735 | Jul 10 | Mongkol Major | false |
| 21 | Kung Fu Panda | - | - | - | $23,354 | 75 | $1,096,121 | Jun 12 | United International Pictures | false |
| 22 | A Tale of Mari and Three Puppies | - | - | - | $22,300 | 8 | $22,300 | Aug 7 | M Pictures | false |
| 23 | A Kha Phu Na Rak | - | - | - | $15,559 | 34 | $15,559 | Aug 21 | Mongkol Film Company | false |
| 24 | Be Kind Rewind | - | - | - | $11,211 | 2 | $11,211 | Jul 31 | M Pictures | false |
| 25 | Hellboy II: The Golden Army | - | - | - | $11,017 | 156 | $1,596,061 | Jul 10 | United International Pictures | false |
| 26 | Evangelion: 1.0 You Are (Not) Alone | - | - | - | $7,208 | 1 | $8,868 | Aug 21 | - | false |
| 27 | Sand Clock | - | - | - | $4,827 | 1 | $5,548 | Aug 12 | Mongkol Major | false |
| 28 | 21 | - | - | - | $3,300 | 1 | $120,971 | May 15 | Sony Pictures Releasing | false |
| 29 | Le premier cri | - | - | - | $3,053 | 1 | $3,053 | Aug 7 | M Pictures | false |
| 30 | Reservation Road | - | - | - | $2,094 | 1 | $2,094 | Aug 21 | J-Bics | false |
| 31 | Wanted | - | - | - | $949 | 151 | $1,905,376 | Jun 26 | United International Pictures | false |
