Revealing mistake: Ian stands on the rooftop, with an elevated highway to the right of the screen, some distance from the building. The right-side rear view of Ian reveals the elevated highway much closer, practically against the side of the building. The CGI elevated highway's height compared to the rooftop also varies, being lower when Ian sits, and the support posts are not even flat against the underside of the elevated highway. (00:41:54 - 00:42:20)
Revealing mistake: Alberto forces minor Alan to smoke a cigarette. Alan appears to be puffing on the cigarette, but no smoke comes out of his mouth when he "exhales". At one point, Alan is inhaling and the red tip of the cigarette (prop) blows outward. (00:36:45)
Revealing mistake: While inside the tunnel in Rome, before the yellow Fiat makes a U-turn multiple skid marks from previous takes are visible. Though one might pressume that the marks were already there, they are at the same spot and have the same pattern as the skid marks that the cars make seconds later.
Revealing mistake: The airplane windows on both sides of the aisle are solid white ovals, with no variations to indicate the airplane is moving in the sky. (00:40:30)
Revealing mistake: Neither driver, Justine, nor passenger, Billy, were visible in the car when it got spun around by the Jeep. Even if both got bent over from the impact, the upper parts of their bodies should have been visible as they were both erect in their seats when the man opened the door to check on them. Also, the car doors were so smashed in that the man should not have been able to open the driver's door (at least not without some force or "Jaws of Life"). (00:19:25 - 00:19:57)
Revealing mistake: There is a glimpse of a bench on the porch landing, roughly parallel to the steps where Jake is sitting with his back at about a 45° angle to the railing. Front views of Jake show the bench oddly angled upward as though it ascends like the steps. (00:38:10 - 00:39:12)
Revealing mistake: Boyd brought Dr. Mackles to the location where he escaped the police hunt. Meanwhile, he rummaged through the rest of the place. In a closet, he found a newspaper with an article that talks about the evil South African CEO. In the first paragraph, because the rest is filler text about a completely unrelated topic (the answer about an inheritance question from the advice column of the Moneywatch website). (00:58:50)