| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (2) |  | Santa Claus: The Movie (1985) | £543,847 | £788,578 | £4,452,097 | 39% | 5 |
| 2 (1) |  | Back to the Future (1985) | £466,875 | £658,625 | £3,506,991 | -55% | 4 |
| 3 (3) |  | Silverado (1985) | £169,884 | £237,838 | £547,606 | -45% | 2 |
| 4 (4) |  | Legend (1985) | £163,627 | £229,078 | £813,502 | -17% | 3 |
| 5 (6) |  | Enemy Mine (1985) | £103,190 | £139,307 | £245,687 | -3% | 2 |
| 6 (5) |  | The Goonies (1985) | £62,133 | £83,880 | £835,727 | -50% | 5 |
| 7 (10) |  | Red Sonja (1985) | £35,460 | £45,052 | £526,871 | 41% | 5 |
| 8 (7) |  | My Beautiful Laundrette (1985) | £16,492 | £19,790 | £957,744 | -60% | 7 |
| 9 (8) |  | Plenty (1985) | £12,524 | £17,534 | £552,819 | -60% | 6 |
| 10 (9) |  | Turtle Diary (1985) | £11,503 | £18,117 | £278,130 | -60% | 4 |
| 11 (13) |  | Letter to Brezhnev (1985) | £6,011 | £7,063 | £935,908 | -33% | 7 |
| 12 (15) |  | Weird Science (1985) | £4,174 | £6,052 | £623,595 | -29% | 9 |
| 13 (11) |  | Cocoon (1985) | £3,248 | £4,385 | £3,317,847 | -82% | 16 |
| 14 (14) | | Cat's Eye (1985) | £3,064 | £5,638 | £675,370 | -62% | 8 |
| 15 (16) |  | Mad Max Beyond Thunderdome (1985) | £2,006 | £2,909 | £1,376,038 | -61% | 11 |