@NewBotVII said:
Неверные данные
При запросе популярных актеров общее колличество странниц "total_pages: 155895", а в примере из документации указано "total_pages": 500.
Все запросы свыше 500-й страницы уходят с ошибкой.

Google Translate

Incorrect data
When requesting popular actors, the total number of pages is "total_pages: 155895",
and in the example from the documentation it is indicated "total_pages": 500.
All requests over the 500th page fail with an error.

The limit is 500 pages.
The total number of items and pages is reported to give an accurate count.
In some cases you can segment your order into 2 or 3 and thus obtain all the data.
For example, we can ask for periods of time.

The number/quantity of Items per Page and the number/quantity of Pages
cannot be changed, configured, specified, restricted, or anything like that.
There will always be up to 20 items per page.
And a maximum of 500 pages.
Therefore, at most 10,000 items.

Of course, depending on the parameters used in your API Request
this number/quantity can be much smaller.
Eventually zero.

In a Trending API Request, the quantities are greater.
A maximum of 1,000 pages
Therefore a maximum of 20,000 items

Here's what Travis Bell, the Administrator, said on 2022-06-28:
https://www.themoviedb.org/talk/62bb2ea18b959e00526428c9#62bb37d2c613ce0094222e71

Unfortunately, there is no planned change on the page limit.
We still show the total results so one can get an accurate count but that is all.