Domestic Box Office For May 2003
Key:Estimated
| Rank | Release | Gross | Max Th | Opening | % of Total | Open Th | Open | Close | Distributor |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Finding Nemo | $339,714,978 | 3,425 | $70,251,710 | 20.7% | 3,374 | May 30 | Dec 18 | Walt Disney Studios Motion Pictures |
| 2 | The Matrix Reloaded | $281,576,461 | 3,603 | $91,774,413 | 32.6% | 3,603 | May 15 | Nov 13 | Warner Bros. |
| 3 | Bruce Almighty | $242,829,261 | 3,549 | $67,953,330 | 28% | 3,483 | May 23 | Dec 11 | Universal Pictures |
| 4 | X2: X-Men United | $214,949,694 | 3,749 | $85,558,731 | 39.8% | 3,741 | May 2 | Sep 25 | Twentieth Century Fox |
| 5 | The Italian Job | $106,128,601 | 2,877 | $19,457,944 | 18.3% | 2,633 | May 30 | Nov 6 | Paramount Pictures |
| 6 | Daddy Day Care | $104,297,061 | 3,472 | $27,623,580 | 26.5% | 3,370 | May 9 | Oct 19 | Revolution Studios |
| 7 | The Lizzie McGuire Movie | $42,734,455 | 2,825 | $17,338,755 | 40.6% | 2,825 | May 2 | Aug 21 | Walt Disney Studios Motion Pictures |
| 8 | The In-Laws | $20,453,431 | 2,652 | $7,319,848 | 35.8% | 2,652 | May 23 | Jul 31 | Warner Bros. |
| 9 | Down with Love | $20,305,251 | 2,123 | $45,029 | 0.2% | 1 | May 9 | Jul 31 | Twentieth Century Fox |
| 10 | Wrong Turn | $15,418,790 | 1,615 | $5,161,498 | 33.5% | 1,615 | May 30 | Sep 25 | Twentieth Century Fox |
| 11 | The Barbarian Invasions | $5,109,226 | 134 | $461,363 | - | 134 | May 9 | Oct 23 | Alliance Atlantis Vivafilm |
| 12 | Capturing the Friedmans | $3,119,113 | 78 | $65,154 | 2.1% | 3 | May 30 | Oct 16 | Magnolia Pictures |
| 13 | The Spanish Apartment 2003 Re-release | $2,830,361 | 100 | $59,315 | 2.1% | 11 | May 16 | - | Fox Searchlight Pictures |
| 14 | Man on the Train | $2,542,020 | 85 | $41,138 | 1.6% | 5 | May 9 | Nov 30 | Paramount Classics |
| 15 | The Dancer Upstairs | $2,377,348 | 152 | $106,142 | 4.5% | 13 | May 2 | Aug 21 | Fox Searchlight Pictures |
| 16 | Together | $1,151,941 | 47 | $69,209 | 6% | 6 | May 30 | Oct 9 | United Artists |
| 17 | Respiro | $1,072,834 | 32 | $71,677 | 6.7% | 7 | May 23 | Nov 20 | Sony Pictures Classics |
| 18 | Owning Mahowny | $1,011,871 | 24 | $33,287 | 3.3% | 9 | May 2 | Oct 23 | Sony Pictures Classics |
| 19 | Pokémon Heroes | $746,381 | 200 | $260,372 | - | 196 | May 16 | Jul 10 | Miramax |
| 20 | The Shape of Things | $735,992 | 60 | $173,246 | - | 40 | May 9 | Jun 19 | Focus Features |
| 21 | Taxi 3 | $497,208 | 37 | $288,000 | 57.9% | 37 | May 30 | - | Christal Films |
| 22 | Blue Car | $465,310 | 28 | $30,087 | 6.5% | 6 | May 2 | Jul 24 | Miramax |
| 23 | Sweet Sixteen | $316,319 | 21 | $26,667 | 8.4% | 3 | May 16 | Jul 17 | Lionsgate |
| 24 | The Trip | $306,567 | 9 | $13,774 | 4.5% | 1 | May 9 | - | TLA Releasing |
| 25 | Armaan | $301,010 | 50 | $225,684 | 75% | 50 | May 16 | - | Eros Worldwide |
| 26 | The Butterfly | $189,144 | 12 | $31,200 | 16.5% | 12 | May 9 | - | - |
| 27 | Gigantic (A Tale of Two Johns) | $160,621 | 5 | $6,411 | 4% | 1 | May 23 | Oct 5 | Cowboy Pictures |
| 28 | Washington Heights | $160,291 | 27 | $61,332 | 38.3% | 27 | May 9 | Aug 24 | MAC Releasing |
| 29 | Friday Night | $156,918 | 5 | $9,381 | 6% | 3 | May 23 | Nov 6 | Wellspring Media |
| 30 | Charlotte Sometimes | $150,445 | 5 | $3,284 | 2.2% | 1 | May 2 | Sep 25 | Small Planet Pictures |
| 31 | Friends and Family | $127,212 | 4 | $8,804 | 6.9% | 1 | May 16 | - | Regent Releasing |
| 32 | Bhoot | $106,774 | 19 | $60,000 | 56.2% | 19 | May 30 | - | Spark Media |
| 33 | A Woman Is a Woman | $100,665 | 2 | $13,213 | 13.1% | 2 | May 16 | - | Rialto Pictures |
| 34 | Made-Up | $79,766 | 5 | - | - | - | May 30 | - | Sister Films LLC |
| 35 | The Sea | $75,994 | 8 | $4,191 | 5.5% | 1 | May 16 | - | Palm Pictures |
| 36 | New Suit | $71,743 | 7 | $13,239 | 18.5% | 7 | May 2 | Dec 4 | Trillion Entertainment |
| 37 | Only the Strong Survive | $57,581 | 13 | $22,035 | 38.3% | 12 | May 9 | Jul 10 | Miramax |
| 38 | Dracula: Pages from a Virgin's Diary | $55,365 | 2 | $4,784 | 8.6% | 1 | May 14 | Jun 29 | Zeitgeist Films |
| 39 | Secret Lives: Hidden Children and Their Rescuers During WWII | $42,390 | 3 | $4,310 | 10.2% | 2 | May 16 | - | The Cinema Guild |
| 40 | Beyond Vanilla | $27,396 | 1 | $5,761 | 21% | 1 | May 16 | Sep 11 | Strand Releasing |
| 41 | Everybody Says I'm Fine! | $27,225 | 3 | $3,860 | 14.2% | 3 | May 16 | Oct 5 | Panorama Entertainment |
| 42 | 18 Years Later | $25,611 | 34 | $25,611 | 100% | 34 | May 2 | - | TVA Films |
| 43 | Almost Salinas | $21,419 | 4 | $7,593 | 35.4% | 4 | May 9 | Jun 12 | Strata Productions |
| 44 | Cinemania | $11,305 | 1 | $3,948 | 34.9% | 1 | May 16 | May 26 | Loop Filmworks |
| 45 | Pursuit of Happiness | $6,850 | 1 | $1,074 | 15.7% | 1 | May 16 | - | Martindale Group LLC |
| 46 | Dr. Benny | $3,657 | 1 | $3,657 | 100% | 1 | May 2 | May 4 | Outrider Pictures |
