UK Box Office 14th April, 1978
| Title | Weekend | Week | Total | % Change | Total Weeks | ||
| 1 (new) |  | The Stud (1978) | £656,902 | £656,902 | £656,902 | new | 1 |
| 2 (2) |  | Star Wars (1977) | £614,224 | £829,202 | £14,678,989 | 48% | 16 |
| 3 (new) |  | Pete's Dragon (1978) | £328,348 | £328,348 | £328,348 | new | 1 |
| 4 (3) |  | Close Encounters of the Third Kind (1978) | £207,470 | £269,711 | £12,162,450 | -23% | 5 |
| 5 (1) |  | Saturday Night Fever (1978) | £188,409 | £244,932 | £2,975,433 | -55% | 4 |