South Korean Box Office For 2003
| Rank | Release | Gross | Max Th | Opening | % of Total | Open Th | Open | Close | Distributor |
|---|---|---|---|---|---|---|---|---|---|
| 1 | The Lord of the Rings: The Return of the King | $28,462,848 | - | - | - | - | Dec 17 | - | - |
| 2 | My Tutor Friend | $17,703,856 | 205 | - | - | - | Feb 7 | - | - |
| 3 | Hero | $10,738,310 | 47 | - | - | - | Jan 24 | - | - |
| 4 | Catch Me If You Can | $9,963,084 | 44 | - | - | - | Jan 24 | - | - |
| 5 | X2: X-Men United | $7,360,012 | - | - | - | - | May 1 | - | - |
| 6 | Sinbad: Legend of the Seven Seas | $6,606,600 | - | - | - | - | Jul 11 | - | - |
| 7 | Lara Croft: Tomb Raider - The Cradle of Life | $5,200,000 | - | - | - | - | Jul 25 | - | - |
| 8 | Die Another Day | $3,409,983 | 40 | - | - | - | Jan 3 | - | - |
| 9 | How to Lose a Guy in 10 Days | $2,931,377 | - | - | - | - | May 8 | - | - |
| 10 | Master and Commander: The Far Side of the World | $2,775,949 | - | - | - | - | Nov 28 | - | - |
| 11 | The Italian Job | $2,750,363 | - | - | - | - | Oct 2 | - | - |
| 12 | Hulk | $2,589,458 | 1 | - | - | - | Jul 4 | - | - |
| 13 | Madeleine | $2,097,923 | 30 | - | - | - | Jan 10 | - | - |
| 14 | The Ring | $1,973,953 | 31 | - | - | - | Jan 10 | - | - |
| 15 | Love Actually | $1,957,915 | 105 | - | - | - | Dec 5 | - | - |
| 16 | Oldboy | $1,882,334 | 22 | - | - | - | Nov 21 | - | - |
| 17 | Two Weeks Notice | $1,721,961 | 58 | - | - | - | Feb 14 | - | - |
| 18 | The Core | $1,552,488 | - | - | - | - | Apr 18 | - | - |
| 19 | Shanghai Knights | $1,550,451 | 78 | - | - | - | Feb 14 | - | - |
| 20 | Cube²: Hypercube | $1,327,594 | 23 | - | - | - | Jan 24 | - | - |
| 21 | 2 Fast 2 Furious | $1,205,847 | - | - | - | - | Sep 5 | - | - |
| 22 | The Recruit | $1,200,000 | - | - | - | - | Mar 14 | - | - |
| 23 | Intolerable Cruelty | $1,082,660 | - | - | - | - | Oct 31 | - | - |
| 24 | Treasure Planet | $1,065,173 | 23 | - | - | - | Jan 10 | - | - |
| 25 | Blue | $997,715 | 40 | - | - | - | Feb 7 | - | - |
| 26 | Johnny English | $973,342 | - | - | - | - | Jun 20 | - | - |
| 27 | About Schmidt | $829,454 | - | - | - | - | Mar 7 | - | - |
| 28 | 8 Mile | $702,297 | 60 | - | - | - | Feb 21 | - | - |
| 29 | I Spy | $690,238 | 22 | - | - | - | Feb 7 | - | - |
| 30 | American Wedding | $595,947 | - | - | - | - | Nov 14 | - | - |
| 31 | Final Destination 2 | $592,035 | - | - | - | - | Jun 20 | - | - |
| 32 | Welcome to Collinwood | $409,213 | 24 | - | - | - | Jan 17 | - | - |
| 33 | S1m0ne | $382,983 | 17 | - | - | - | Jan 17 | - | - |
| 34 | Dark Water | $376,748 | 66 | - | - | - | Feb 21 | - | - |
| 35 | The Transporter | $349,581 | 18 | - | - | - | Jan 31 | - | - |
| 36 | The Hours | $330,711 | 54 | - | - | - | Feb 21 | - | - |
| 37 | The Life of David Gale | $304,010 | - | - | - | - | Mar 21 | - | - |
| 38 | The Truth About Charlie | $169,147 | 18 | - | - | - | Jan 10 | - | - |
| 39 | Tales of the Unusual | $134,085 | 48 | - | - | - | Feb 21 | - | - |
| 40 | The Emperor's Club | $132,077 | - | - | - | - | Mar 7 | - | - |
| 41 | He Loves Me | $127,998 | 21 | - | - | - | Feb 14 | - | - |
| 42 | Infernal Affairs | $115,974 | 130 | - | - | - | Feb 21 | - | - |
| 43 | Old School | $86,228 | - | - | - | - | Apr 25 | - | - |
| 44 | Memories of Murder | $46,128 | 23 | - | - | - | Apr 25 | - | - |
| 45 | Millennium Mambo | $42,910 | 44 | - | - | - | May 30 | - | - |
| 46 | The Lord of the Rings: The Two Towers 2003 Re-release | $24,000 | - | - | - | - | Dec 12 | - | - |
| 47 | The Lord of the Rings: The Fellowship of the Ring 2003 Extended Edition | $19,407 | - | - | - | - | Dec 5 | - | - |
| 48 | Talk to Her 2002 Re-release | $5,377 | 1 | - | - | - | Apr 18 | - | - |
| 49 | The Cat Returns | $1,981 | 1 | - | - | - | Aug 8 | - | - |
| 50 | Double Agent | $843 | 54 | - | - | - | Jan 24 | - | - |
