| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (1) |  | Deep Impact (1998) | £1,601,651 | £2,242,311 | £4,006,116 | -9% | 2 |
| 2 (2) |  | Sliding Doors (1998) | £859,944 | £1,117,927 | £4,453,101 | 23% | 4 |
| 3 (3) |  | Scream 2 (1998) | £457,661 | £617,842 | £5,577,486 | -13% | 4 |
| 4 (new) |  | Blues Brother's 2000 (1998) | £261,956 | £261,956 | £261,956 | new | 1 |
| 5 (6) |  | Titanic (1997) | £199,618 | £1,669,484 | £61,996,461 | 21% | 18 |
| 6 (4) |  | Wild Things (1998) | £198,701 | £268,246 | £448,953 | 9% | 2 |
| 7 (5) |  | Martha Meet Frank Daniel and Laurence (1998) | £173,355 | £225,362 | £788,350 | 6% | 3 |
| 8 (7) |  | Breakdown (1998) | £150,579 | £218,340 | £1,521,206 | 9% | 4 |
| 9 (9) |  | The Big Lebowski (1998) | £133,251 | £193,214 | £860,794 | 43% | 5 |
| 10 (11) |  | Mousehunt (1998) | £100,810 | £146,175 | £4,814,675 | 39% | 8 |
| 11 (12) |  | Live Flesh (1998) | £81,318 | £109,779 | £165,839 | 31% | 2 |
| 12 (new) |  | Star Kid (1998) | £79,008 | £79,008 | £79,008 | new | 1 |
| 13 (8) |  | Anastasia (1997) | £57,607 | £77,769 | £3,401,137 | -28% | 8 |
| 14 (13) |  | U.S. Marshals (1998) | £50,742 | £68,502 | £1,779,080 | -7% | 5 |
| 15 (14) |  | As Good As It Gets (1997) | £48,176 | £65,038 | £7,325,264 | 16% | 11 |