Méliès International Festivals Federation

Méliès International Festivals Federation (MIFF), formerly European Fantastic Film Festivals Federation (EFFFF), established in 1987, is a network of 22 genre film festivals from 16 countries based Brussels, Belgium, and dedicated to promoting and supporting European cinema, particularly films in the fantasy, horror and science fiction genres. Ernest Mathijs and Jamie Sexton describe it as "the biggest fan-based cult-network on the continent", comparable in scope to World Science Fiction Convention, San Diego Comic-Con, and Fangoria's Weekend of Horrors, though less commercial.

Source: Wikipedia — Méliès International Festivals Federation (CC BY-SA 4.0)