Wow, thanks a lot for this software, really appreciated. I've been looking for a while for good movie databases, and this really seems to be it. Great!

I do have a few questions though: I have a decent amount of movies, most of them in english, some in german (my native language), some with dual audio (english and dubbed german), some with german subtitles. When I watch movies with friends who don't speak english, language is a pretty important filter obviously.
Now I was wondering - For those movies that have dual audio, the VLC player lets me choose an audio track and it also says what language these tracks are. The same goes for Subtitles. So the Videos do have metadata about language. Is there a way for coollector to recognize these?
Also, for the videos in my collection quality varies widely, some are HiRes bluerays, some are 480p youtube downloads. Is it possible to filter or sort for quality? (could use tags, but then there's no way to populate these tags automatically I guess so for a decent sized collection it would be quite the hassle to do this by hand...)
next one: I would prefer the interface to be more spacious for the plot, while at the same time I don't really care for the cast down to the last extra or who did the sound and whatnot... I guess the question is: Is it possible to tinker with the interface like this, to change it in ways that go beyond the color scheme? e.g., have more space around the plot, and give me only the first 10 cast, director, writer and producer?
Can I filter for multiple categories, for example, list everything that's SciFi AND Adventure AND mystery?
and finally: When I scanned my movies-folder, there's been some files that weren't recognized. I know I can associate files to movies, but can I do it the other way round, like coollector gives me a list of unrecognized files and I can tell it what they are? And - is it possible to add movies / videos / thumbs and details that aren't in coollectors DB already?
One more thing, more of a remark I guess: I noticed there's very little use of context-menus, which I think is a pity since they're a very good and fast way to do stuff to/with things/files.
I'm only just starting to use coollector, so please forgive me if any of those are dumb questions

Cheers!
EDIT: Edited a few times for answers i found myself