The 13 Aug 1962 DV announced the upcoming project, referred to by its working title, Dementia, to be produced by Roger Corman and directed by his production assistant, Francis Coppola, a recent winner of the Samuel Goldwyn Award. On 10 Sep 1962, LAT reported that filming began that day at Ardmore Studios in Bray, Ireland. Appearing in the film was Irish actor Pat McGee, for whom playwright Samuel Becket reportedly wrote Krapp’s Last Tape. Another addition to the cast was Sean O’Toole, as noted in the 13 Sep 1962 DV.
       In his 1996 book, Faster and Furiouser: The Revised and Fattened Fable of American International Pictures, author Mark Thomas McGee stated that Corman provided Coppola with a budget of $22,000, left over from another production. However, Coppola reportedly financed the picture with $20,000 he raised by preselling the European distribution rights.
       Dementia 13 opened in Los Angeles, CA, on a double bill with The Terror (1963, see entry) during the autumn of 1962, as evidenced by an advertisement in the 1 Oct 1963 LAT. Coppola participated in both productions. A review in the 28 Oct 1963 NYT noted that it was released as part of a double feature with "X"--The Man With X-Ray Eyes (1963, see entry), and described the cast as “unlucky.”
       The picture opened in Great Britain in 1964 as The Haunted and the Hunted. Although release information credited Roger Corman as producer, production information credited Charles Hannawalt and R. Wright Campbell, with Corman as executive producer. William Cathcart was credited as photographer only in production material.