Math and economics are two of the more reliable majors if you’re looking for solid LSAT/law school preparation and employability. But if you don’t have a high to middling aptitude for math, your GPA can get depressed, harming your law school options. Also, as @juillet mentioned, if you need to take on large debt for law school, many people claim that the payoff won’t be there unless you can get into a top law school. If that’s true, and I assume it is, then getting into that top 20 school is imperative, so you’ll need a fairly high GPA. Bear that in mind when choosing a major (i.e. GPA tends to follow happiness).
Economics is a social science, so maybe it would appeal to you more, but again, it can be quite abstract and has quantitative elements, along with obvious connections to business, so if that vibe doesn’t interest you, you probably won’t fetch a high enough GPA for a top law school. But give it a try if you like.
If you really enjoy English and social studies, I suggest majoring in English or history or international studies. Then throw in a more quantitative minor like math/applied math/stats or computer science to ramp up your employability. Compsci would probably prove useful to you with your love of film, as you need to be comfortable with “tech”. But again, you need some aptitude and interest in it. You don’t absolutely require a film major to get into the film industry. Connections matter a lot. Some folks think, well, what better way to forge connections than to study film and be “around” it. It doesn’t usually work that way, though. It takes passion and ambition and talent to make those connections, first and foremost, not a certain major from a certain school.