A SHOT IN THE DARK (1964, UK/USA, 103m, PG) **** Comedy, Mystery dist. United Artists; pr co. The Mirisch Corporation; d. Blake Edwards; w. Blake Edwards, William Peter Blatty (based on the play by Harry Kurnitz from the play ‘L’idiote’ by Marcel Achard); pr. Blake Edwards; ph. Christopher Challis (DeLuxe | 2.35:1); m. Henry Mancini;…