In 2006 he collaborated with French artist Loris Gréaud to produce an 'Ontic Helpline' for a fictitious 'Thanatalogical Corporation' – a black telephone that transfers callers through an endless loop of pre-recorded messages. The telephone was displayed in the FiAC collection in Paris, and purchased by gallerists/collectors Solene Guillier and Nathalie Boutin. McCarthy wrote the script for Johan Grimonprez's feature film "Double Take" (2009). The script consists of a short story, loosely based on Borges's '25 August 1983', in which Hitchcock meets his double on the set of one of his films. The film won the Black Pearl award (MEIFF, Abu Dhabi) in 2009. McCarthy has also tutored and lectured at various institutions including the Architectural Association, Central Saint Martins School of Art, the Royal College of Art, London Consortium and Columbia University.