I thought it would be a good idea to start this thread so people can help each other out.
If you’ve always wanted to see or buy a specific film that isn’t available to you, mention it here (and ideally what country you live in, as shops and especially streaming services don’t always serve every country), and maybe someone knows a way to get it. This could also be used for Soundtracks.
For movies, checking JustWatch .com may help you find a streaming service for a specific film you’re looking for (you can select the country you want to watch from), but I don’t think they have every platform in every country covered (and sometimes there simply is no streaming service offering a given film at that moment).
Important note: please do not share illicit sources (like P2P-based file sharing) here.