| Rank | Title | Weekend |
|---|---|---|
| 1↔ (1) | Superman / 1978 | £6,464,193 |
| 2↔ (2) | Watership Down / 1978 | £168,879 |
| 3↔ (3) | Piranha / 1978 | £39,247 |
| 4↔ (4) | Heaven Can Wait / 1978 | £17,122 |
| 5↔ (5) | Force 10 From Navarone / 1978 | £4,126 |
| 6↔ (6) | The Cat From Outer Space / 1978 | £1,886 |
| 7↔ (7) | Grease / 1978 | £1,029 |
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