Unlike Cuadecuc, Umbracle features several scenes of synchronized sound, including a notable scene where Christopher Lee recites Edgar Allan Poe's "The Raven" and sings opera in an empty theatre, and a lengthy sequence of Spanish filmmakers discussing censorship in their country very frankly, their statements later reinforced by a nearly 15-minute segment from a pro-Franco film.
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Like Cuadeuc, the entire film is photographed on different kinds of high contrast black & white film stock and features a sound track by frequent Portabella collaborator Carles Santos.