The Frank Sinatra discography page doesn't include the movie "Von Ryan's Express (1965)"

AEIO_,

Not sure why you're missing the credit when you look at Sinatra's name page.

Are you using the desktop version of the site?

Since his most prolific job is use in Soundtracks, the Actor category doesn't open automatically. But as ACT_1 illustrates, the credit is definitely there. Just click on the Actor bar (or Actor: Movie, depending on your site preference settings).

Or are you on a completely different site?

Because IMDb is NOT a discography site.

IMDb is the world's most popular and authoritative source for movie, TV and celebrity content, designed to help fans explore the world of movies and shows and decide what to watch. Our searchable database includes millions of movies, T ... Read more.

Act_1, 

Not sure what you want all the categories open. Sinatra's page being a great example, with 500 Soundtrack credits.

Besides, the Show All button (at the top of the filmography) does that for you when you want it.

If you're having to reset the page the way you want during a single session, it sounds like you're opening links on top of the Name page. You can avoid that by opening links in a new tab by either right-clicking the link and selecting they type of Open, or using the mouse wheel as a button (if you have such a mouse).