What university would be best for me?

You need to start by looking at the UCAS website at www.ucas.com.  Go to Course Search to find all courses in film studies.  The link is below

http://search.ucas.com/cgi-bin/hsrun/search/search/StateId/QBEy2wnf_e-WotTKudaJH-3aV5MzE-3HG4/HAHTpage/search.HsKeywordSuggestion.whereNext?query=257&word=FILM&single=Y

You can then look in more detail about individual courses.  You will have to decide where you want to live as well as what to study, so this will probably eliminate a number of universities.

Have you looked at The Student Room: http://www.thestudentroom.co.uk/