I will provide feedback instead of suggestions but great post.

If what you are passionate about is not only films but doing that research you're kind of alluding to - as in, look up the different camera angles so you can point them out etc. Then yes. Its honestly the perfect idea for a channel because your content is going to come from a place of enjoy. So kudos

I think you're idea is great and instead of think about changing it consider adding on to it and grow your idea. Example : my favorite podcast had a one off episode that was sort of like a March madness bracket through debate. And it was terrible. 10 years later they decided to do it again and it was fantastic.

Keep your creative juices flowing and I think you'll have a lot of fun