Poster

Is there a way to delete poor quality posters that are pinned at the top? I tried hard to delete it, but it will not be accepted, even though it is very poor quality. I have provided other high-quality copies of it. For example, this title contains five pinned posters, all of which are of poor quality. https://www.imdb.com/title/tt0192657/mediaindex/?ref_=mv_close I know some of them may be provided by the studio or production company. But these are old films that should be updated if no one else is doing it.