Character mistake: Tony and Stella are leaving the warehouse to get away from the villains. She calls him Tony - how did she know his name, as she only just met him a few minutes earlier, and he didn't tell her his name?
Continuity mistake: At the movie party, a person pushed the waiter, squishing all the blood-colored tarts on the photos. The waiter is pressing the tray in a different position at the cut. (00:07:30)
Continuity mistake: A hospital nurse hands a cup of water to Billy Bright, so he can take some medication. In the next scene, the cup is back on the nurse's tray and Billy picks it up himself.
Continuity mistake: The morning after the sexual assault on the colonel's wife, the protagonist watches the jeep leave for the airport without him. During the scene, the shadows on the road before the hotel change between shot and reverse. (00:34:30)
Visible crew/equipment: When Neil and Brenda are in the row boat, the bulge of the mic transmitter is visible at Brenda's lower back. (00:43:45)
Continuity mistake: When he is blackmailed in the car at knife-point, in one shot, the steering wheel is a white Mercedes steering wheel with logo. In all the rest of the scenes it is a black American car steering wheel. (00:05:02)
Continuity mistake: When Anita Delon smells the special perfume her brother-in-law had made for Martha, Susan Strasberg's hair is on/off the side of her neck in the different shots. (00:28:20)
Factual error: If 2 spacecraft are travelling towards each other's planets, at the same speed, it would still take 6 weeks to get to each other's planet. They kept saying they must've turned back cause only 3 weeks elapsed.
Suggested correction: Where do you get it would take 6 weeks to travel to the other planet? Throughout the film they're constantly saying it's a 3-week trip to the planet and a 3-week trip back home, for a 6-week round trip.