Usually I can see trailers. Plex checks a movie name and finds the trailer online at Youtube and gives the trailer button you can use to show this trailer.
Usually less famous movies won’t have trailers but movies like Star Wars have them of course.
So in short, I do not have a trailer on my Plex server downloaded but wan to see the trailers from youtube
UPDATE: I found some DO have trailers!! Strange is that Star Wars does not, but after setting some other extra’s and refreshing the database it looks like that some movies do have trailers… 50%… better then nothing right?
I’m having the same issue. If the trailer exists as a local extra on my server, it shows up, but add a plex pass member, big name movies that have trailers on you tube should show up. Some do, but only some. It’s hit or miss. For instance; wonder woman doesn’t pull the trailer from wherever, with my plex pass.