Robert Hamer’s “Kind Hearts and Coronets” had more elegance and originality, and Chaplin’s “Monsieur Verdoux” was not only funnier, but also made more sense — if that’s what you want — about murder as private diplomacy (…) “The Assassination Bureau” has style, but only in its settings and its performances, by Miss Rigg, an exuberant Oliver Reed, and by a good supporting cast that includes Curt Jurgens and Telly Savalas. Like an old electric automobile, the movie rolls forward, without surprises, steadily and almost soundlessly, except for the bomb explosion on the soundtrack. It’s never as funny as it looks, but it’s a pleasant enough ride if you like your companions. — Vincent Canby, 1969.