Made by Hessam Eslami and Atieh Attarzadeh, ‘The Marriage Project’ will take part at the festival’s International Competition section.
The documentary is about the life and challenges facing the patients of a mental hospital.
Earlier reports said Iran’s documentary ‘No Place for Angels’ will participate at the festival’s Youth Vision Competition.
The 12th Millennium Festival will kick off in Brussels on March 27 and will run until April 4.
The festival is intended to be “the venue for the screening of high-quality, independent documentary films that talk about our times and encourage viewers to reflect on their relationship to the world,” the event’s website reads.