To reiterate, the media is reasonably well known, so if something has barely any views on YouTube, for example, it's probably not the intended answer. Related to that, when I made them, the aim was that they would be answered without using a computer. Of course, if you don't know the media that is not possible, but some of these become easy by just searching things like "films with X in title" which in my view is a sort of cheap way to find the answer. So just a request to try not to use a computer to solve them. I think they are more enjoyable and satisfying that way.
A few comments on this set. 1 and 3 barely count as an expression, but I'll keep them. 2 is probably the hardest one out of any previous questions I've asked. It's a bit of stretch but maybe someone can figure it out. 7 is probably the least known thing.
A clue for 2 is that
You read it in a specific way to pronounce the answer, without the word "gravity"