| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (new) |  | Honey, I Shrunk the Kids (1989) | £1,750,661 | £1,750,661 | £1,750,661 | new | 1 |
| 2 (new) |  | Steel Magnolias (1990) | £511,488 | £511,488 | £511,488 | new | 1 |
| 3 (1) |  | Black Rain (1990) | £442,082 | £641,019 | £2,726,991 | -45% | 3 |
| 4 (new) |  | All Dogs Go to Heaven (1990) | £376,389 | £376,389 | £376,389 | new | 1 |
| 5 (2) |  | Parenthood (1990) | £250,690 | £350,966 | £4,629,479 | -45% | 5 |
| 6 (3) |  | Lock Up (1990) | £197,428 | £256,656 | £612,027 | -44% | 2 |
| 7 (new) |  | Family Business (1990) | £186,323 | £186,323 | £186,323 | new | 1 |
| 8 (4) |  | Turner and Hooch (1990) | £154,686 | £224,295 | £3,514,309 | -33% | 5 |
| 9 (new) |  | A Dry White Season (1989) | £150,441 | £150,441 | £150,441 | new | 1 |
| 10 (5) |  | Casualties of War (1990) | £82,817 | £120,085 | £691,518 | -50% | 3 |
| 11 (6) |  | Back to the Future Part II (1989) | £73,624 | £95,711 | £11,943,195 | -29% | 12 |
| 12 (7) |  | When Harry Met Sally (1989) | £27,361 | £39,673 | £8,699,083 | -23% | 11 |
| 13 (10) |  | In Country (1989) | £4,346 | £6,302 | £138,932 | -60% | 5 |
| 14 (11) |  | Mystic Pizza (1990) | £3,527 | £5,114 | £457,392 | -57% | 6 |
| 15 (13) |  | Jesus of Montreal (1989) | £3,281 | £4,265 | £28,808 | -23% | 4 |