Hi, I've heard of people doing two subjects and then adding a third year to their A levels to do a third subject in what is essentially "year 14", but if you aren't at a fee paying school I'm not sure that they'd offer that. I think it depends on what your future goals are- if you want to go to uni, you definitely need three A levels, and it might be easier to push through with a subject you hate, than to pick up a new one when you've already missed more than half a term of the course. If you move college you probably wouldn't be starting until January in which case you'd have missed a fifth of the new course. I'd say if you have the flexibility to add a year onto your A levels, or you only want to do two, then do what you can to drop the subject; but if going to uni (especially a competitive uni) matters to you, stay where you are and try to do alright at film studies with minimal work.