Mastermind is a 1976 Japanese-American comedy thriller film directed by Alex March and starring Zero Mostel, Keiko Kishi and Gawn Grainger. Filmed in 1969, it sat on the shelf for seven years before receiving a limited theatrical release in 1976. It has developed a cult following since its release on home video.[citation needed]
The second of producer Malcolm Stuart's two-picture deal with screenwriter, William Peter Blatty, the project was inspired by the success of the 1964 Peter Sellers comedy A Shot in the Dark which Blatty had co-written with producer/director Blake Edwards. Blatty's script was drastically revised by Ian McLellan Hunter prior to production, and the disgruntled screenwriter chose the pseudonym Terence Clyne for his screen credit.[2] By 1973 it had recorded a loss of $2.9 million.[1] Blatty's original screenplay was published as part of a limited edition collection by Lonely Road Books in 2013 as Five Lost Screenplays by William Peter Blatty.