If you're curious about what happens behind the scenes, this video - about the importance of props in motion pictures from Rishi Kaneria - is well worth your time.
As is this Feb. 7, 2018 Creative Future interview with Elisa Malona (follow this link), head of props for The Tonight Show Starring Jimmy Fallon.
To make theatrical films, television and theater - or to simply appreciate them as the product of disciplined artists - it's useful to understand how the illusions are created. One of the most ancient practices involves creating (or renting or buying) and preparing the objects that the performers will hold in their hands.
Randy Finch's Film Blog:
Thoughts from a film producer about making and distributing films.