Mexican Box Office For May 2003
| Rank | Release | Gross | Theaters | Total Gross | Release Date | Distributor |
|---|---|---|---|---|---|---|
| 1 | X2: X-Men United | $10,541,750 | 730 | $14,151,893 | Apr 30 | - |
| 2 | The Matrix Reloaded | $5,814,951 | 530 | $12,902,350 | May 22 | - |
| 3 | How to Lose a Guy in 10 Days | $2,396,660 | 220 | $4,122,486 | Apr 25 | - |
| 4 | I Murder Seriously | $2,326,072 | 270 | $2,870,372 | Apr 30 | - |
| 5 | Shanghai Knights | $1,180,117 | 197 | $1,530,784 | May 9 | - |
| 6 | The Hunted | $1,148,755 | 200 | $1,829,680 | May 16 | - |
| 7 | Johnny English | $1,148,196 | 149 | $3,208,528 | Apr 18 | - |
| 8 | The Hot Chick | $1,088,735 | 300 | $7,707,889 | Mar 28 | - |
| 9 | The Jungle Book 2 2003 Re-release | $848,823 | 350 | $5,108,668 | Apr 11 | - |
| 10 | Piglet's Big Movie | $846,683 | 200 | $1,417,509 | Apr 30 | - |
| 11 | Old School | $824,850 | 148 | $954,378 | May 9 | - |
| 12 | The Pianist | $680,377 | 120 | $4,094,927 | Mar 21 | - |
| 13 | Darkness Falls | $654,142 | 225 | $2,831,178 | Apr 11 | - |
| 14 | National Security | $542,292 | 150 | $933,387 | Apr 25 | - |
| 15 | Dreamcatcher | $521,051 | 250 | $2,362,015 | Apr 16 | - |
| 16 | Solaris | $250,267 | 79 | $641,329 | Apr 11 | - |
| 17 | City of God | $225,202 | 34 | $474,728 | Apr 30 | - |
| 18 | Pinocchio Italian Version | $162,400 | 110 | $385,565 | May 22 | - |
| 19 | Antwone Fisher | $148,617 | 32 | $358,019 | May 16 | - |
| 20 | Tears of the Sun | $138,687 | 304 | $2,951,643 | Apr 4 | - |
| 21 | The Hours | $108,340 | 69 | $1,772,152 | Mar 7 | - |
| 22 | Femme Fatale | $102,848 | 192 | $848,869 | Apr 16 | - |
| 23 | Narc | $91,318 | 40 | $272,120 | May 16 | - |
| 24 | The Wild Thornberrys | $83,371 | 308 | $1,403,886 | Apr 11 | - |
| 25 | Belphegor: Phantom of the Louvre | $77,254 | 50 | $826,005 | Feb 21 | - |
| 26 | Ya no los hacen como antes | $63,804 | 35 | $68,044 | May 22 | - |
| 27 | The Four Feathers | $56,816 | 100 | $569,563 | Apr 4 | - |
| 28 | Tortilla Soup 2003 Re-release | $45,386 | 24 | $45,386 | May 9 | - |
| 29 | Life or Something Like It | $43,755 | 50 | $316,010 | Mar 28 | - |
| 30 | The Core | $39,978 | 332 | $3,282,256 | Mar 28 | - |
| 31 | Adaptation. | $36,772 | 20 | $601,646 | Feb 21 | - |
