Continuity: When Fowler tells Phuong that Pyle is dead she is leaning back in a chair. First her long hair is hanging down in front, then it moves to the back between shots.

Continuity: When Pyle and Fowler talk about the sound difference of a backfiring car and a grenade Pyle's jacket is hanging over his right sholder, held by one finger. When the camera angle changes it's hanging over his left arm.

Continuity: 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.

Revealing: After the scene where Fowler twists his ankle, there is a scene in which he's in an office-like place with a walking stick, yelling and limping. While he's yelling, watch his 'hurt' leg. He walks using it without the cane at least 3 times.

Continuity: As a signal to the assassins, Pyle was asked to show himself on the balcony with a book in his hand. This is supposed to indicate that he would be having dinner with Pyle at the Vieux Moulin. However, he gives the signal before he has asked Pyle to meet, therefore not yet sure if the dinner would work out as planned.

Continuity: When Fowler interviews General The a large book on The's desk appears and disappears several times during the scene.

Plot hole: Fowler has not been informed how and when Pyle would be killed, in fact he was only able to guess from Hinh's hints that a murder is planned. But when he arrives at the Vieux Moulin where he was asked to meet Pyle he only requests a table for one, something that's held against him later when inspector Vigot interrogates him.

Continuity: In the interview scene there's an x-shaped scar on Muoi's cheek, but later in the warehouse there's only one cut.

Continuity: 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.

Continuity: The cups and teapot on Fowler's table disappear and reappear during the Place Garnier bombing scene.

Continuity: When Fowler and Pyle are sitting in the watchtower you see heavy rain outside and even coming through the roof. However, in all outside shots it's not raining at all.

Continuity: When Pyle's body is found floating in the river the right side of his jacket is bloodstained, but in the morgue scene the wound is on the left side, which is in line with the stabbing at the end of the movie.

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.