British Box Office For March 2004
| Rank | Release | Gross | Theaters | Total Gross | Release Date | Distributor |
|---|---|---|---|---|---|---|
| 1 | Starsky & Hutch | $16,574,903 | 453 | $22,714,898 | Mar 12 | - |
| 2 | Along Came Polly | $10,108,827 | 385 | $15,030,232 | Feb 27 | - |
| 3 | The Passion of the Christ | $7,561,653 | 366 | $20,441,388 | Mar 12 | - |
| 4 | Mona Lisa Smile | $6,912,682 | 414 | $8,165,671 | Mar 12 | - |
| 5 | Dawn of the Dead | $5,319,274 | 344 | $9,878,774 | Mar 26 | - |
| 6 | Honey | $5,070,282 | 318 | $6,076,374 | Mar 12 | - |
| 7 | 21 Grams | $4,044,909 | 129 | $4,470,545 | Mar 5 | - |
| 8 | School of Rock | $3,049,043 | 392 | $19,218,493 | Feb 6 | - |
| 9 | The Haunted Mansion | $2,722,825 | 430 | $14,866,970 | Feb 13 | - |
| 10 | The Lord of the Rings: The Return of the King | $2,244,968 | 502 | $106,643,712 | Dec 17 | - |
| 11 | Looney Tunes: Back in Action | $2,201,253 | 427 | $9,599,084 | Feb 13 | - |
| 12 | Lost in Translation | $2,169,349 | 281 | $17,986,199 | Jan 9 | - |
| 13 | Something's Gotta Give | $2,065,619 | 371 | $12,638,254 | Feb 6 | - |
| 14 | Cheaper by the Dozen | $1,979,574 | 389 | $12,950,898 | Feb 13 | - |
| 15 | Torque | $1,926,807 | 314 | $1,998,059 | Mar 5 | - |
| 16 | The Missing | $1,896,130 | 292 | $2,819,271 | Feb 27 | - |
| 17 | Open Range | $1,843,098 | 283 | $1,957,727 | Mar 19 | - |
| 18 | The Rundown | $1,636,247 | 294 | $3,742,875 | - | - |
| 19 | Uptown Girls | $1,188,054 | 194 | $1,188,054 | Mar 5 | - |
| 20 | Big Fish | $869,731 | 361 | $11,451,955 | Jan 23 | - |
| 21 | The Blind Swordsman: Zatoichi Canadian Release | $735,816 | 47 | $1,317,197 | Mar 19 | - |
| 22 | Under the Tuscan Sun | $645,944 | 245 | $806,314 | - | - |
| 23 | Agent Cody Banks 2: Destination London | $644,107 | 245 | $1,865,270 | Mar 26 | - |
| 24 | Cold Mountain | $607,348 | 324 | $16,651,409 | Dec 26 | - |
| 25 | Touching the Void | $579,481 | 64 | $4,616,440 | Dec 12 | - |
| 26 | Mystic River | $533,975 | 125 | $4,284,056 | Oct 17 | - |
| 27 | Girl with a Pearl Earring | $473,369 | 140 | $5,957,139 | Jan 16 | - |
| 28 | The Station Agent | $309,850 | 59 | $903,919 | - | - |
| 29 | House of Sand and Fog | $279,764 | 93 | $525,621 | Feb 27 | - |
| 30 | Tooth | $123,097 | 322 | $2,351,592 | Feb 13 | - |
| 31 | Suzie Gold | $120,312 | 24 | $120,312 | Mar 5 | - |
| 32 | The Perfect Score | $86,367 | - | $86,367 | Mar 19 | - |
