Paul Elliott’s review published on Letterboxd:
Based on the 1971 novel of the same name by Frederick Forsyth, this movie has a contemplative tone that's been admirably wrenched from the source material by Kenneth Ross. Edward Fox discharges a suitable aloof coldness in the role of a professional assassin (aka The Jackal) employed to eliminate French president Charles de Gaulle in the summer of 1963. Director Fred Zinnemann declined to use soundtrack music after the opening, believing it would distract from the produced tension. The Day of the Jackal is a well structured and engrossing thriller.