Hi would I be able to choose courses that do not align with the interests I have mentioned in my application (assuming I am applying to a general LLM program)?

Hi! usually you are not constrained in your choice of courses during your LLM.
(unless you are doing your LLM in the US and want to take the bar afterwards - then there will be requirements on common law courses that you'll need to take).

I did my LLM at Harvard and I took a lot of courses I liked, eg film and business (at Harvard, you could cross-register to take classes at other schools - which was what I did).