Before revision:  we also analysed a social network  of users and positively-rated movieson the films layer: in this caseour approach divides movies in clusters of similar genres or audience .
After revision:  we also analysed a social network (i.e. the MovieLens dataset, a bipartite network of users and positively-rated movieson the films layer: in this caseour approach divides movies in clusters of similar genres or audience .