In the United States where I live, one one typically pursues a law degree after earning an undergraduate degree. It is completely possible to study film and television as an undergraduate and matriculate to law school once you have earned your bachelor's degree. You'd need to make sure you take any pre-requisite courses for law school admission while you study Film and Television as an undergrad, but you definitely can do both.
Now with that said, there are several ways to combine a passion for film and television with the law, some of which don't require you to practice law but your legal background will help. Take for instance agents, agents represent actors, writers, directors, sports figures (for sports, marketing, television, etc.), and also below the line talent (producers, etc.). Many agents attended law school but every few of them practice law. There are also lawyers practicing law you can find them at agencies, production companies, on shows (production attorneys), for the studios/networks, representing talent/writers/producers, music lawyers, and outside counsel who help all of these groups with more nuanced type work. You can even focus on other areas than entertainment law and still be involved in the field, for instance many companies have either in-house or use outside counsel for labor, immigration, tax, real estate, complex intellectual property issues, litigation, etc. There are also jobs that perform legal work where you can but don't have to have a law degree - clearance work, music licensing, line producers, television reporting (as mentioned above), writers, media consultants, etc.
Therefore, there is not only a way to go to law school but to also be a lawyer working in entertainment after law school. But please keep in mind the majority of the work will be in the larger metropolitan areas (e.g. Los Angeles, New York, London, Vancouver, Toronto, Berlin, etc.). Hopefully this is helpful.