This week the World Cinema Project boxset changes pace a bit with Trances, Ahmed El Maanouni's 1981 documentary on Moroccan avant-garde band Nass El Ghiwane. But it doesn't change pace too much, as this Nass El Ghiwane's music is firmly anti-colonial and the band members' interviews deliver overt Marxist messaging in much the same way as the previous four films of the set have been.