| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (1) |  | Terminator 2: Judgment Day (1991) | £1,541,718 | £2,158,405 | £17,603,535 | -15% | 5 |
| 2 (2) |  | Robin Hood: Prince of Thieves (1991) | £1,475,091 | £2,065,127 | £19,069,483 | 31% | 9 |
| 3 (new) |  | Regarding Henry (1991) | £597,246 | £597,246 | £597,246 | new | 1 |
| 4 (new) |  | True Identity (1991) | £457,214 | £457,214 | £457,214 | new | 1 |
| 5 (new) |  | Only the Lonely (1991) | £364,084 | £364,084 | £364,084 | new | 1 |
| 6 (3) |  | Jungle Fever (1991) | £184,565 | £239,935 | £641,414 | -54% | 2 |
| 7 (5) |  | Dying Young (1991) | £170,750 | £221,975 | £1,569,613 | -47% | 3 |
| 8 (4) |  | Oscar (1991) | £140,021 | £196,029 | £524,056 | -57% | 2 |
| 9 (6) |  | New Jack City (1991) | £133,660 | £193,807 | £1,270,676 | -43% | 3 |
| 10 (11) |  | The Naked Gun 2 ½: The Smell of Fear (1991) | £94,957 | £132,940 | £10,444,663 | -9% | 12 |
| 11 (8) |  | Soapdish (1991) | £88,335 | £119,252 | £1,073,458 | -41% | 4 |
| 12 (7) |  | Prospero's Books (1991) | £71,640 | £93,132 | £596,045 | -62% | 3 |
| 13 (12) |  | The Rocketeer (1991) | £61,862 | £86,607 | £4,613,756 | -37% | 7 |
| 14 (9) |  | Close My Eyes (1991) | £60,356 | £87,516 | £208,228 | -50% | 2 |
| 15 (13) |  | Teenage Mutant Ninja Turtles II: The Secret of the Ooze (1991) | £56,984 | £82,627 | £3,959,826 | -38% | 6 |
| 16 (15) |  | Nothing But Trouble (1991) | £32,067 | £46,497 | £438,349 | -50% | 4 |
| 17 (14) |  | Edward Scissorhands (1990) | £29,900 | £38,870 | £5,161,311 | -53% | 8 |
| 18 (16) |  | Thelma and Louise (1991) | £17,723 | £23,926 | £3,916,103 | -29% | 10 |
| 19 (18) |  | The Silence of the Lambs (1991) | £772 | £1,081 | £16,965,746 | -23% | 16 |