For the get movie recommendations API: movie/<movidId>/recommendations the number of items returned in the results property is 21. After a bit of searching in the forums, a number of posts state the page size (results) is always capped at 20.

Sample Query:

http://api.themoviedb.org/3/movie/104/recommendations?language=en&page=1

Why do recommendations have a different number of results in the page size (21) vs the rest of the API (20)?