Continuity mistake: When Pyle comes to Fowler's place on the night of his assassination his dog leaves a footprint in the uncured concrete in the hallway where some tiling work hasn't been finished yet. In close-up the line of tiles at the border has a step that wasn't there before. (01:12:45)
Continuity mistake: When the first car bomb goes off at Place Garnier the cyclists and the traffic policeman right in front of the car are totally unaffected but Fowler, who is sitting across the square, almost falls off his chair. When we see the exploding car again a split second later cyclists and policeman and everybody else have disappeared from the scene, but in the third shot of the car the whole area is covered with corpses, many more than there were people around before the bomb went off. (01:04:05)
Factual error: At the end of the movie, Harry Truman is quoted in 1954 in laying out the domino theory, but it was his successor, Dwight D. Eisenhower who did that.