Spanish Box Office For December 2003
| Rank | Release | Gross | Theaters | Total Gross | Release Date | Distributor |
|---|---|---|---|---|---|---|
| 1 | Finding Nemo | $25,691,365 | 383 | $29,462,544 | Nov 28 | - |
| 2 | The Lord of the Rings: The Return of the King | $23,703,273 | 513 | $39,834,538 | Dec 17 | - |
| 3 | Master and Commander: The Far Side of the World | $10,591,222 | 373 | $13,129,821 | Nov 28 | - |
| 4 | S.W.A.T. | $6,258,469 | 403 | $7,121,362 | Dec 5 | - |
| 5 | Love Actually | $5,500,386 | 288 | $41,634 | Nov 21 | Universal Pictures International (UPI) |
| 6 | Elf | $3,181,913 | 255 | $4,082,173 | Dec 12 | - |
| 7 | Freaky Friday | $2,622,162 | 200 | $3,014,628 | Dec 5 | - |
| 8 | Looney Tunes: Back in Action | $2,388,871 | 226 | $2,790,446 | Dec 5 | - |
| 9 | Anything Else | $2,319,390 | 114 | $3,109,262 | Dec 5 | - |
| 10 | Timeline | $2,268,043 | 279 | $2,458,398 | Dec 5 | - |
| 11 | Planta 4ª | $2,109,560 | 131 | $6,017,161 | Oct 31 | - |
| 12 | Matchstick Men | $1,970,239 | 141 | $2,830,029 | Dec 12 | - |
| 13 | El Cid: The Legend | $1,776,757 | 288 | $2,945,771 | Dec 19 | - |
| 14 | Football Days | $1,717,145 | 211 | $14,117,202 | Sep 19 | - |
| 15 | Tears of the Sun | $1,396,776 | 242 | $3,061,190 | Nov 21 | - |
| 16 | Good Bye Lenin! | $1,253,947 | 70 | $2,913,831 | Nov 7 | - |
| 17 | Mystic River | $1,225,987 | 121 | $6,953,801 | Oct 24 | - |
| 18 | Take My Eyes | $1,120,225 | 97 | $5,624,242 | Oct 10 | - |
| 19 | House of 1000 Corpses | $1,097,652 | 103 | $1,663,969 | Dec 19 | - |
| 20 | The Matrix Revolutions | $1,056,489 | 475 | $12,812,680 | Nov 7 | - |
| 21 | In America | $868,169 | 81 | $868,169 | Dec 5 | - |
| 22 | Ju-on: The Grudge | $858,255 | 81 | $2,194,393 | Nov 14 | - |
| 23 | Cabin Fever | $825,855 | 194 | $825,855 | Nov 28 | - |
| 24 | The Medallion | $790,663 | 149 | $1,678,512 | Dec 26 | - |
| 25 | Intolerable Cruelty | $614,031 | 235 | $7,868,455 | Oct 24 | - |
| 26 | Lo mejor que le puede pasar a un cruasán | $433,004 | 157 | $877,062 | Nov 21 | - |
| 27 | Hero | $276,451 | 91 | $1,901,380 | Nov 14 | - |
| 28 | Undertaking Betty | $172,836 | 69 | $172,836 | Nov 28 | - |
| 29 | The Barbarian Invasions 2003 Re-release | $143,734 | 48 | $1,388,311 | - | - |
| 30 | The Human Stain | $134,971 | 160 | $2,443,578 | Oct 31 | - |
| 31 | Elephant | $129,367 | 40 | $129,367 | Nov 28 | - |
| 32 | Dogville | $120,846 | 38 | $1,494,849 | Nov 7 | - |
| 33 | Steal | $107,285 | 98 | $107,285 | Dec 12 | - |
| 34 | Carmen | $93,107 | 191 | $7,320,957 | Oct 3 | - |
| 35 | Osama | $36,808 | 10 | $242,885 | Dec 19 | - |
| 36 | Gigli | $34,238 | 20 | $34,238 | Dec 12 | - |
| 37 | The Singing Detective | $31,567 | 41 | $31,567 | Dec 12 | - |
| 38 | 'R Xmas 2003 Re-release | $17,604 | 17 | $17,604 | Dec 19 | - |
