British Box Office For March 2003
| Rank | Release | Gross | Theaters | Total Gross | Release Date | Distributor |
|---|---|---|---|---|---|---|
| 1 | Maid in Manhattan | $10,788,455 | 422 | $12,680,355 | Mar 7 | - |
| 2 | The Ring | $9,318,914 | 398 | $14,764,956 | Feb 21 | - |
| 3 | Jackass: The Movie | $6,040,237 | 340 | $6,040,237 | Feb 28 | - |
| 4 | Two Weeks Notice | $5,091,405 | 416 | $20,737,672 | Feb 7 | - |
| 5 | Chicago | $5,034,921 | 354 | $25,993,706 | Dec 26 | - |
| 6 | Catch Me If You Can | $4,821,525 | 460 | $24,300,180 | Jan 31 | - |
| 7 | Treasure Planet | $3,452,112 | 474 | $10,192,426 | Feb 14 | - |
| 8 | The Hours | $3,150,388 | 219 | $6,732,547 | Feb 14 | - |
| 9 | The Life of David Gale | $3,126,313 | 343 | $4,016,065 | Mar 14 | - |
| 10 | Just Married | $3,071,833 | 333 | $5,825,723 | Mar 21 | - |
| 11 | Far from Heaven | $2,076,403 | 195 | $2,076,403 | Mar 7 | - |
| 12 | The Wild Thornberrys | $1,860,799 | 404 | $9,104,143 | Feb 7 | - |
| 13 | Equilibrium | $1,734,463 | 292 | $1,734,463 | Mar 14 | - |
| 14 | Daredevil | $1,731,786 | 387 | $9,021,016 | Feb 14 | - |
| 15 | Analyze That | $1,715,498 | 290 | $1,715,498 | Feb 28 | - |
| 16 | Confessions of a Dangerous Mind | $1,633,162 | 201 | $1,633,162 | Mar 14 | - |
| 17 | The Recruit | $1,540,272 | 382 | $7,083,794 | Mar 21 | - |
| 18 | The Lord of the Rings: The Two Towers | $1,413,679 | 513 | $92,041,188 | Dec 18 | - |
| 19 | Evelyn | $1,277,190 | 293 | $1,699,561 | Mar 21 | - |
| 20 | National Security | $1,272,522 | 261 | $1,643,004 | Mar 21 | - |
| 21 | Solaris | $1,063,144 | 153 | $1,063,144 | Feb 28 | - |
| 22 | Adaptation. | $938,120 | 94 | $938,840 | Feb 28 | - |
| 23 | The Core | $917,474 | 395 | $2,553,665 | Mar 28 | - |
| 24 | Cradle 2 the Grave | $589,803 | 201 | $1,924,621 | Mar 28 | - |
| 25 | Final Destination 2 | $432,826 | 332 | $9,328,951 | Feb 7 | - |
| 26 | The Rules of Attraction | $357,922 | 104 | $1,312,596 | Mar 28 | - |
| 27 | Barbershop | $230,822 | 100 | $230,822 | Mar 14 | - |
| 28 | The Magdalene Sisters Canadian Release | $204,427 | 51 | $3,318,128 | Oct 25 | - |
| 29 | The Pianist | $193,145 | 93 | $3,998,172 | Jan 24 | - |
