During St. Catherine of Genoa's lifetime, the canonical penalty of interdict was used more frequently, usually to bring dioceses in line with the reigning Lord Bishop's wishes. I can't recall the circumstances, but the district Catherine lived in was placed under interdict - so the sacraments were not celebrated, which meant Catherine could not attend Mass or receive daily Communion. (Something unusual for a lay person of her day anyway.) So she went outside her district/diocese and received at another church, in another diocese. Which makes me think that the penalty of interdict is territorial, while excommunication is universal.
I don't know for sure.
Cool photo though. It's from a Bunuel film.