Computer Animation at Bournemouth

it sounds to me that you have ambition and an artistic vision, but you don't have one specific medium that you dabble in yet. starting a film company would be more of a directorial or organisational role, so to speak, but it's also very important for someone in a directorial role to have a very good understanding of the mediums that they are working with. walt disney may have been a film producer who founded his own company, but he was also an animator and an artist: an artist with entrepreneurial spirit and the ability to bring in other creatives to achieve his vision as well as sitting down and spending a lot of his time dabbling with his craft.

the main thing i would ask you is: can you outright enjoy the process of creating art and does that overlap with using digital software and programming to produce visual work? this would be relevant to the degree you've taken an interest and pieces that are relevant to this (3d modelling, computer animation work of any flavour, examples of drawings and sketches showing how you come up with creative ideas, some coding projects) would likely be highly desired in your portfolio. i wouldn't recommend applying to a course of this type if down the line, you discover that you enjoy and are better at drawing with a pencil or paper more than sitting down with computer software, and it seems like you don't really know that yet outside of your proficiency in school-level maths indicating that you'd be better off pursuing something more programming-related.

from my experience, most of the creatives i know pursue one or two specific crafts that they are interested in specifically, be that drawing, 3D modelling, animation or coding websites. and that requires you to direct most of your time and energy into the exercise of doing those one or two particular crafts. i love modelling and animating 3d models, but comparatively my drawing abilities are mediocre. i do not have the raw daughtsmanship ability to produce a high quality drawing on a piece of paper or to sculpt from 3D media, but i could produce something of equivalent high quality to a pen-and-paper professional when i sit down and model in computer software. that's simply because i've spent thousands of hours in software, whereas i've maybe spent hundreds with a pencil and paper.

maybe it's for that reason, doing a foundation year might be to your benefit, since you don't seem to have a medium that you've tried to specialise in as of yet. foundation years are typically very self-directed and flexible with the kind of work you'll be tasked to produce, so it'll give you the space to dabble with basically any medium you want and eventually produce work in your specialty of choice. also, you're 16. if you do decide the foundation year path is right for you, that gives you nearly three years to prepare a portfolio of work, and in three years, you can learn A LOT about a particular medium and become pretty proficient in it (enough to get into uni) if you buckle down and put in the effort, racking up hundreds of hours of practice after school and on weekends. i have a friend who at 18 got accepted into an illustration degree only a year after they started drawing and they had no art qualifications (they did science and maths) before doing a foundation diploma simply because they had an epiphany that this was their calling in life and it drove them to sit down and put that much effort into learning the skill. they're now a professional illustrator and doing well in their career. and while i wouldn't recommend making snap decisions like that for most people, it's far from impossible to get good at a craft with only a couple of years to work with during your free time.

my honest advice to you is to give the specific medium you're interested in a try. read books on art fundamentals like linear perspective (if your dad is an architect, he probably knows a lot about things like this), human anatomy, how to animate, how to code, or do online courses. make sure you really, really enjoy doing the work you're doing and have a realistic outlook on your ability to get proficient in it before applying to a relevant university degree, and go from there. if you find yourself naturally spending most of your time involving yourself in a particular craft, then that craft is probably the one for you. once you've proved yourself to be a proficient artist, going to university will likely provide you with the networking opportunities to meet others, some of which might like the idea of starting a production with you if you've got the ideas and know-how to make them a reality!