UK Box Office 19th December, 1975
| Title | Weekend | Week | Total | % Change | Total Weeks | ||
| 1 (new) |  | The Man Who Would Be King (1975) | £371,066 | £371,066 | £371,066 | new | 1 |
| 2 (new) |  | Dog Day Afternoon (1975) | £100,252 | £100,252 | £100,252 | new | 1 |
| 3 (1) |  | Once Is Not Enough (1975) | £59,206 | £82,888 | £445,225 | -44% | 3 |
| 4 (2) |  | Shampoo (1975) | £500 | £675 | £1,497,749 | -38% | 15 |