History of the IMDb Top 250 - 2021
| Snapshot date | New entries | Changes |
|---|---|---|
| 19 September 2021 | 0 | 21 |
| 20 September 2021 | 1 | 10 |
| 21 September 2021 | 1 | 144 |
| 22 September 2021 | 1 | 7 |
| 23 September 2021 | 0 | 4 |
| 24 September 2021 | 0 | 8 |
| 25 September 2021 | 0 | 7 |
| 26 September 2021 | 0 | 6 |
| 27 September 2021 | 0 | 12 |
| 28 September 2021 | 0 | 14 |
| 29 September 2021 | 0 | 9 |
| 30 September 2021 | 0 | 19 |
| 1 October 2021 | 1 | 14 |
| 2 October 2021 | 1 | 71 |
| 3 October 2021 | 1 | 17 |
| 4 October 2021 | 1 | 8 |
| 5 October 2021 | 1 | 10 |
| 6 October 2021 | 0 | 9 |
| 7 October 2021 | 0 | 8 |
| 8 October 2021 | 1 | 12 |