UK Box Office 18th April, 1975
| Title | Weekend | Week | Total | % Change | Total Weeks | ||
| 1 (2) |  | The Towering Inferno (1974) | £119,498 | £173,272 | £5,576,860 | -38% | 12 |
| 2 (1) |  | Funny Lady (1975) | £105,428 | £137,056 | £2,212,187 | -50% | 5 |
| 3 (3) |  | Escape to Witch Mountain (1975) | £81,098 | £113,537 | £1,364,436 | -23% | 5 |
| 4 (4) |  | Tommy (1975) | £58,847 | £82,386 | £912,420 | -23% | 4 |