The third film in the low-budget 'Cube' franchise, 'Cube Zero' is a prequel to the original Canadian sci-fi horror, revealing more of the shadowy organization behind the deadly, booby-trapped maze of shifting rooms. It follows a technician who breaks protocol to help a prisoner trapped inside. More conventional and less enigmatic than the 1997 original, it drew mixed reactions, with fans appreciating its expanded mythology while others missed the first film's stark, claustrophobic mystery.