As bonus trivia, depiction of Bilbo was based on the "short, round stature, expressive eyes, broad and open face" of the famous Soviet actor Yevgeniy Leonov (https://en.m.wikipedia.org/wiki/Yevgeny_Leonov).

In this video Leonov mentions this fact before reading an excerpt from the book: https://youtu.be/z7hEJxTBsTs