| Title | Weekend | Week | Total | % Change | Total Weeks |
| 1 (2) |  | Back to the Future (1985) | £1,083,438 | £1,462,641 | £4,969,632 | 57% | 5 |
| 2 (new) |  | National Lampoons European Vacation (1985) | £576,562 | £576,562 | £576,562 | new | 1 |
| 3 (3) |  | Silverado (1985) | £134,942 | £182,172 | £729,778 | -21% | 3 |
| 4 (4) |  | Legend (1985) | £131,814 | £177,949 | £991,451 | -19% | 4 |
| 5 (1) |  | Santa Claus: The Movie (1985) | £62,542 | £90,686 | £4,542,783 | -89% | 6 |
| 6 (5) |  | Enemy Mine (1985) | £51,595 | £72,233 | £317,920 | -50% | 3 |
| 7 (6) |  | The Goonies (1985) | £31,067 | £45,047 | £880,774 | -50% | 6 |
| 8 (7) |  | Red Sonja (1985) | £23,640 | £33,096 | £559,967 | -33% | 6 |
| 9 (8) |  | My Beautiful Laundrette (1985) | £10,995 | £14,843 | £972,587 | -33% | 8 |
| 10 (9) |  | Plenty (1985) | £8,349 | £10,854 | £563,673 | -33% | 7 |
| 11 (10) |  | Turtle Diary (1985) | £4,601 | £5,981 | £284,111 | -60% | 5 |
| 12 (11) |  | Letter to Brezhnev (1985) | £2,404 | £3,125 | £939,033 | -60% | 8 |
| 13 (12) |  | Weird Science (1985) | £1,926 | £2,600 | £626,195 | -54% | 10 |
| 14 (15) |  | Mad Max Beyond Thunderdome (1985) | £1,509 | £2,188 | £1,378,226 | -25% | 12 |