| pos. | Title | Gross | |
|---|---|---|---|
| 1 |  | Star Wars (1977) | £15,326,344 |
| 2 |  | Close Encounters of the Third Kind (1978) | £12,846,301 |
| 3 |  | Superman (1978) | £11,206,120 |
| 4 |  | Grease (1978) | £4,078,944 |
| 5 |  | Saturday Night Fever (1978) | £3,245,862 |
| 6 |  | Game of Death (1978) | £2,387,789 |
| 7 |  | Revenge of the Pink Panther (1978) | £1,972,580 |
| 8 |  | The Wild Geese (1978) | £1,669,354 |
| 9 |  | Herbie Goes to Monte Carlo (1978) | £1,521,957 |
| 10 |  | The Stud (1978) | £1,315,513 |
| 11 |  | Heaven Can Wait (1978) | £1,309,744 |
| 12 |  | Abba: The Movie (1978) | £1,306,014 |
| 13 |  | Pete's Dragon (1978) | £1,057,457 |
| 14 |  | Jaws 2 (1978) | £976,286 |
| 15 |  | Midnight Express (1978) | £924,524 |
| 16 |  | Death On the Nile (1978) | £881,984 |
| 17 |  | The Cat From Outer Space (1978) | £812,985 |
| 18 |  | Watership Down (1978) | £803,583 |
| 19 |  | The Driver (1978) | £802,952 |
| 20 |  | Convoy (1978) | £786,527 |