I'm moving your question to API section.

You can make a discover query with specified year, e.g.:

https://api.themoviedb.org/3/discover/movie?api_key=###&language=en-US&sort_by=popularity.desc&include_adult=false&include_video=false&page=1&primary_release_year=1968

Each returned record then contains field "poster_path" which can be used to get url of the default poster:

...  
{  
      "popularity": 22.063,  
      "vote_count": 6323,  
      "video": false,  
      "poster_path": "/90T7b2LIrL07ndYQBmSm09yqVEH.jpg",  
      "id": 62,  
      "adult": false,  
      "backdrop_path": "/rkaP7dnHenOr2n2IqMxip6rtT4W.jpg",  
      "original_language": "en",  
      "original_title": "2001: A Space Odyssey",  
      "genre_ids": [  
        12,  
        9648,  
        878  
      ],  
      "title": "2001: A Space Odyssey",  
      "vote_average": 8,  
      "overview": "Humanity finds a mysterious object buried beneath the lunar surface and sets off to find its origins with the help of HAL 9000, the world's most advanced super computer.",  
      "release_date": "1968-04-10"  
    },  
...  

I.e.: "https://image.tmdb.org/t/p/" + "w500" + "/90T7b2LIrL07ndYQBmSm09yqVEH.jpg" = "https://image.tmdb.org/t/p/w500/90T7b2LIrL07ndYQBmSm09yqVEH.jpg"

You can get a list of all allowed poster sizes by using configuration query:

...
    "poster_sizes": [  
      "w92",  
      "w154",  
      "w185",  
      "w342",  
      "w500",  
      "w780",  
      "original"  
    ],  
...

I have never used the API. How do you make queries? In a browser, or with a specific program?

I have never used the API.

Ahh, if you just want to browse those posters on the TMDB website, you must wait for this feature to be finished and launched.

No, I have only recently discovered the (great!) site... Thanks, I'll keep an eye on it.

@talestalker said:

I have never used the API.

Ahh, if you just want to browse those posters on the TMDB website, you must wait for this feature to be finished and launched.

It seems this has been implemented, as it's on the list "Done"?

That ticket is about the website discover experience which is indeed done (use the "Filters" panel found here).

@travisbell said:

That ticket is about the website discover experience which is indeed done (use the "Filters" panel found here).

Okay, but it still doesn't seem to be able to do what I was looking for. Listing all film posters of a specific year.

Setting filter date range to e.g. 2019-01-01 to 2019-12-31 and leave the results to be sorted by their popularity should return up to 10k of the most popular movies originally released in 2019 showing their poster (usually the best one as decided by user votes). You can further limit your filter to some particular country, original language, release type, etc. I actually used this feature to find, check and eventually replace posters of all originally Czech language movies and it worked very well.

@talestalker said:

Setting filter date range to e.g. 2019-01-01 to 2019-12-31 and leave the results to be sorted by their popularity should return up to 10k of most popular movies originally released in 2019 showing their poster (usually the best one as decided by user votes). You can further limit your filter to some particular country, original language, release type or so. I actually used this feature to find, check and eventually replace posters of all originally Czech language movies and it worked very well.

Yeah, problem is, I'm looking for posters as graphic design, not artifacts of specific films... In that sense, having an API download all posters for a range of films would be more efficient than browsing through the pages as it will take ages. Unfortunately I'm not a programmer or anything.

I understand, but from the TMDb website user's perspective this would be very niche feature and it would be quite messy to present all our poster images in one place as it would show a mix of all language and release poster and cover variants for all our movies (just the Marvel's Iron Man has 65 variants of posters and covers). But who knows, maybe Travis has some plans enabling image filtering as part of this ticket.

Anyway, for now the only way to accomplish what you want really is to make your own script, download all necessary posters using API and show them in your preferred way. Unfortunately, we can't help you if you can't write your own code.

Okay, thanks for the info. Maybe at some later point then. If there were some template I could imagine editing a script to suit my needs - depending on the complexity, but that's about it.