If you get a chance to go over half term or one day after school make sure you do as they have the most helpful stuff and loads of excellent resources. Email them first to see when is best to go and with your research title and sometimes they can work for you online but at a fee.
This is the website:
http://www.bfi.org.uk/education-research/bfi-reuben-library/visiting-bfi-reuben-library