Eero et al realize that - there’s no such thing as a program as opposed to a major at UChicago. For better or for worse, their position is that not only are programs bad, business majors are bad as well - the Core isn’t enough exposure to liberal arts for them. Just to get that straight.
PBPL students take most of their classes in the PBPL dept, but the dept itself is in practice a second, more quanty/econy political science dept. For example, that’s why the Pearson grant was seen by many as a slap at the political science dept - they’re very similar. The MPP is preprofessional but the undergrad major is not, and PBPL students do not consider themselves preprofessional. Accordingly, most are not preparing to enter public policy as a career. Even for the MPPs, Harris is a bit of an outlier among policy schools for its research focus and math reqs, and there’s at least one variant of the MPP explicitly designed to be a terminal MA to prep for economics PhD admissions.
As for film, there is an option to do a creative component, but it’s not required and it requires special approval. I really have no idea how many go to film school, but I imagine that at least a few do - it’s the most obvious thing to major in if you’re in that situation and it does offer some filmmaking classes.