The British Film Institute (BFI) is a charitable organization established by Royal Charter that encourages the development of film, television and moving images in the UK. It promotes education about these mediums and their impact on society. While the BFI shows films like a normal cinema, it typically features smaller, independent productions focused on social issues or education. The BFI also runs several film festivals annually, including the London Film Festival and London Lesbian and Gay Film Festival. The BFI IMAX and BFI Southbank are two of its iconic cinemas, with the IMAX featuring the largest screen and sound system and Southbank hosting up to 2,000 films per year across various genres and eras.