What's the difference between posters and stills?

Posters, also known as "posters" or "posters", belong to outdoor advertisements and are distributed in streets, theaters, exhibitions, business districts, stations, docks, parks and other public places. Street art is also called "instant" abroad. Compared with other advertisements, it has the characteristics of large picture, wide content, rich artistic expression and strong farsightedness effect.

Stills are also a kind of film publicity materials. A set of photos used to summarize the main plot and characters of the film. Posted in cinemas or public places, and published in film publications, to achieve the purpose of publicity to the audience. Stills are also film materials, which are handed over to the National Film Archive for preservation together with other film archives. Taking stills is listed as one of the work of the film crew. Generally, when shooting, the photography assistant (or designated person) and the deputy director are responsible for shooting together. After being selected by the propaganda department of the studio, it will be handed over to the photography department for mass production.