The Edinburgh International Film Festival (EIFF), established in 1947, is the world's oldest continually running film festival. EIFF presents both UK and international films, in all genres and lengths. It also presents themed retrospectives and other specialized programming strands.

A film festival is an organized, extended presentation of films in one or more cinemas or screening venues, usually in a single city or region. Increasingly, film festivals show some films outdoors. Films may be of recent date and depending upon the festival's focus, can include International and Domestic releases. Some film festivals focus on a specific filmmaker, genre of film, or subject matter. Several film festivals focus solely on presenting short films of a defined maximum length. Film festivals are typically annual events. Some film historians, including Jerry Beck, do not consider film festivals as official releases of the film.