Australian Box Office For May 2003
| Rank | Release | Gross | Theaters | Total Gross | Release Date | Distributor |
|---|---|---|---|---|---|---|
| 1 | The Matrix Reloaded | $14,465,367 | 482 | $22,070,814 | May 15 | - |
| 2 | X2: X-Men United | $8,781,972 | 359 | $10,654,741 | Apr 30 | - |
| 3 | How to Lose a Guy in 10 Days | $3,387,329 | 246 | $7,287,449 | Apr 24 | United International Pictures |
| 4 | Whale Rider | $2,867,231 | 203 | $5,208,397 | May 8 | - |
| 5 | Ripley's Game | $2,266,584 | 182 | $2,618,035 | Apr 17 | - |
| 6 | Anger Management | $1,721,636 | 325 | $7,116,457 | Apr 17 | - |
| 7 | Phone Booth | $1,176,527 | 177 | $3,143,533 | May 22 | - |
| 8 | Johnny English | $1,140,634 | 252 | $7,664,271 | Apr 10 | - |
| 9 | National Security | $841,352 | 146 | $903,970 | May 8 | - |
| 10 | Russian Ark Canadian Release | $450,573 | 12 | $1,171,556 | May 1 | - |
| 11 | What a Girl Wants | $357,972 | 171 | $3,534,182 | Apr 3 | - |
| 12 | The Pianist | $353,257 | 53 | $2,255,498 | Mar 6 | - |
| 13 | The Life of David Gale | $343,090 | 155 | $654,583 | May 22 | - |
| 14 | Shanghai Knights | $330,642 | 187 | $2,795,786 | Apr 10 | - |
| 15 | The Jungle Book 2 2003 Re-release | $325,976 | 280 | $2,834,861 | Apr 10 | - |
| 16 | Alexandra's Project | $302,680 | 24 | $426,401 | May 8 | - |
| 17 | Nowhere in Africa | $252,870 | 12 | $855,643 | Apr 17 | - |
| 18 | The Magdalene Sisters Canadian Release | $239,966 | 17 | $711,770 | Apr 17 | - |
| 19 | Ned Kelly | $205,271 | 354 | $5,040,860 | Mar 27 | - |
| 20 | Anita & Me | $176,936 | 41 | $177,578 | May 8 | - |
| 21 | Fat Pizza | $176,767 | 101 | $2,146,843 | Apr 10 | Roadshow Films |
| 22 | Mrs Caldicot's Cabbage War | $149,372 | 20 | $584,141 | May 15 | - |
| 23 | Kangaroo Jack | $144,489 | 261 | $2,315,484 | Apr 10 | - |
| 24 | The Wild Thornberrys | $135,700 | 255 | $2,152,828 | Apr 10 | - |
| 25 | Punch-Drunk Love | $113,129 | 30 | $840,999 | - | Big Bull Productions |
| 26 | The Matrix | $87,654 | 93 | $10,467,585 | - | Roadshow Entertainment |
| 27 | Spider | $77,230 | 8 | $144,894 | May 8 | - |
| 28 | Horseplay | $58,564 | 99 | $71,712 | May 22 | - |
| 29 | Chicago | $49,725 | 201 | $3,679 | Jan 23 | Paramount Pictures |
| 30 | The Lord of the Rings: The Two Towers | $47,647 | 425 | $26,850,032 | - | Roadshow Films |
| 31 | The Crime of Padre Amaro | $47,197 | 11 | $83,925 | May 22 | - |
| 32 | Who Is Cletis Tout? | $27,752 | 35 | $27,752 | May 8 | - |
| 33 | The Hours | $27,363 | 142 | $3,961,950 | Feb 20 | - |
| 34 | Barbershop | $22,437 | 15 | $22,437 | May 22 | - |
| 35 | Open Hearts | $16,020 | 4 | $16,020 | May 15 | - |
| 36 | Adrenaline Rush: The Science of Risk | $12,405 | 1 | $12,405 | May 8 | - |
| 37 | Son of the Bride | $1,359 | 1 | $1,359 | May 22 | - |
Data courtesy of Motion Picture Distributors Association of Australia
