Factual error: When the doctors are operating on Virgil's eyes, you see his right eye closed as if he were sleeping normally. If they hadn't already operated on it, it would have been taped shut. If they had operated on it, it would have been covered with gauze which would be taped on his face.
Factual error: After some tinkering with a TV set and a mirror, Calvin Webber finds that he can watch a TV show in reverse image. On the screen is the opening of "The Honeymooners" showing the cast members' names superimposed on a picture of the moon, with Jackie Gleason's face. But the picture is in color, mostly blue and off-white, while the actual "Honeymooners" series was filmed in black-and-white.
Factual error: The two main characters attempt to cross the bridge of the Petronas Towers hanging from wires holding lights. The view that this shows is wrong. KL Tower is shown in the background, but the bridge cannot be seen from KL Tower. Looking between the Petronas towers from any angle, apart from really high up, above the bridge height, you cannot see KL Tower. (01:30:10)
Factual error: While Nate and his business associates are driving around in downtown Baltimore, the Key Bridge (which spans Baltimore harbor) is visible in the background. The movie was set in 1954; the Key Bridge was built in 1972, 18 years later. (01:33:55)