Filmmaking / Directing : Film directing courses london - suggestions by Martina Polla Avogadri

Hi there! I need your precious advices. I'm an Italian actress (27) and at present -after studying acting and working as an actress- I would like to gain some skills in film directing. I'm thinking about moving to London for a while from February/March and I'm looking for a Directing Course, but I have no idea what are the best Schools/courses. I'd love to find a short, intensive, practical course (1 to 3 months) to learn the basis of directing and to start knowing London. Anyway any advice is warmly welcomed! Thank you so much!! Martina