Thai Box Office For 2003
| Rank | Release | Gross | Theaters | Total Gross | Release Date | Distributor |
|---|---|---|---|---|---|---|
| 1 | The Lord of the Rings: The Return of the King | $3,276,200 | - | $4,630,752 | Dec 19 | - |
| 2 | The Matrix Revolutions | $2,331,000 | - | $2,331,000 | Nov 5 | - |
| 3 | My Girl | $1,078,000 | - | $3,370,000 | - | - |
| 4 | The Rundown | $806,000 | - | $806,000 | Oct 24 | - |
| 5 | Rahtree: Flower of the Night | $782,830 | - | $782,800 | Nov 14 | - |
| 6 | The Park | $607,900 | - | $708,000 | Dec 4 | - |
| 7 | Spy Kids 3: Game Over | $598,000 | - | $598,000 | Oct 17 | - |
| 8 | Love Actually | $386,600 | - | $696,423 | Dec 4 | - |
| 9 | Scary Movie 3 | $380,600 | - | $418,200 | Dec 4 | - |
| 10 | Kill Bill: Vol. 1 | $377,600 | - | $377,600 | Nov 21 | - |
| 11 | Once Upon a Time in Mexico | $307,300 | - | $344,900 | Dec 4 | - |
| 12 | Man of Ma Year | $300,100 | - | $550,000 | Dec 25 | - |
| 13 | Ta-Kien | $260,000 | - | $260,000 | Oct 24 | - |
| 14 | Beautiful Boxer | $190,100 | - | $190,100 | Nov 28 | - |
| 15 | Baytong | $184,100 | - | $274,900 | Dec 26 | - |
| 16 | Intolerable Cruelty | $153,634 | - | $153,634 | Nov 28 | - |
| 17 | Freaky Friday | $152,500 | - | $190,100 | Nov 21 | - |
| 18 | Doraemon: New Nobita's Great Demon-Peko and the Exploration Party of Five | $120,000 | - | $120,000 | Oct 24 | - |
| 19 | Sema: The Warrior of Ayodhaya | $120,000 | - | $120,000 | Oct 17 | - |
| 20 | Finding Nemo | $103,000 | - | $1,280,000 | - | - |
| 21 | Jeepers Creepers 2 | $98,000 | - | $98,000 | Oct 17 | - |
| 22 | Looney Tunes: Back in Action | $97,600 | - | $97,600 | Dec 5 | - |
| 23 | Elf | $83,100 | - | $103,952 | Dec 12 | - |
| 24 | House of the Dead | $52,600 | - | $52,600 | Nov 14 | - |
| 25 | Infernal Affairs II | $50,100 | - | $50,100 | Nov 14 | - |
| 26 | Uptown Girls | $37,500 | - | $37,500 | Nov 21 | - |
| 27 | Feng Shui | $30,300 | - | $30,300 | Dec 26 | - |
| 28 | New Blood 2003 Re-release | $23,800 | - | $23,800 | Nov 14 | - |
| 29 | Battle Royale II | $22,635 | - | $22,635 | Oct 31 | - |
| 30 | My Boss's Daughter | $9,500 | - | $68,000 | - | - |
