| Title | Weekend | Week | Total | % Change | Total Weeks | ||
| 1 (new) | ![]() | Every Which Way But Loose (1979) | £909,949 | £909,949 | £909,949 | new | 1 |
| 2 (new) | ![]() | National Lampoons Animal House (1979) | £886,034 | £886,034 | £886,034 | new | 1 |
| 3 (new) | ![]() | The Deer Hunter (1979) | £783,669 | £783,669 | £783,669 | new | 1 |
| 4 (1) | ![]() | Halloween (1978) | £66,762 | £93,467 | £2,158,703 | -37% | 6 |
| 5 (2) | ![]() | Damien: Omen II (1979) | £37,876 | £53,026 | £668,006 | -37% | 5 |
| 6 (3) | ![]() | Superman (1978) | £6,843 | £9,580 | £13,255,003 | -50% | 12 |
| 7 (4) | ![]() | Jaws 2 (1978) | £4,922 | £6,891 | £2,608,107 | -44% | 10 |
| 8 (5) | ![]() | Watership Down (1978) | £2,818 | £3,945 | £1,111,760 | -17% | 12 |