How do I get to work in the film industry?

I’m a senior in high school and I’m still unsure about what I want to major in. I love the idea of doing something creative. The film industry has always been very appealing to me, so I’m wondering the different fields that are part of it. I would definitely enjoy being behind the scenes, I am not looking to be an actress or anything along those lines. I’m not against working in some sort of production area, I find that working on the sets would be something that I would like. However, I have no experience on anything related to film, apart from research projects that I’ve done through high school (did my ap research on music in films). For the longest time I also considered working on marketing, and I haven’t forgotten about that but could working in marketing as part of the film industry be doable? When I apply to college I don’t really know what major to apply because I’m not sure what the things I am interested in are a part of. For the most part I’ve chosen media arts, and marketing majors.