a.) A movie (Cloud Atlas, the Ballad of Buster Scruggs) that features separate stories around a theme; also referred to as an omnibus or portmanteau film. See Portmanteau. b.) A television series (The Twilight Zone), or limited streaming series (Black Mirror), which present standalone episodes across a master motif, but with different characters and worlds. See Motif, Serial, Episodic, and Procedural.