Factual error: A person with 60% burns on his body would not be wearing pyjamas, as the Hungarian guy does. (00:19:45)
Factual error: When Gadji hears Ace imitating a gorilla, he says 'Silverback'. In the next scene he says to Mick 'Female'. A silverback is the dominant male in a gorilla group, named for his coloring. See http://www.wwfus.org/gorillas/species.cfm.
Factual error: As Al Pacino is catching up to Robert De Niro on the freeway he uses his walkie talkie to get an update on De Niro's location. He does not take his finger off of the talk button and therefore would not be able to hear the helicopter pilot's response.
Factual error: After taking off from Bangor, the pilot pulls back on the flight control bringing the plane up to level flight. However, after taking off, a plane is "nose up" and would require pushing forward on the controls to bring the nose down to level. This is also evident by looking at the attitude indicator (circle with top half blue and bottom half brown). The white line indicates the horizon and you can watch the indicator show the plane's attitude coming from below horizon (nose down) to the horizon (level flight).
Factual error: In one scene, we Dolores driving back home, after the scene where Vera tells her that accidents can 'happen' to wives husbands every day. The shot shows a huge full moon in the sky. Everyone who has every learnt any science/astronomy should know that a huge full moon cannot occur the night before a solar eclipse. (01:29:35)
Factual error: The movie is set in 1948. When Easy first visits Albright about the job, Albright throws some $20 bills down in front of him. The top bill bears the signature of Treasury Secretary Nicholas F. Brady, which appeared on paper currency from 1988 to 1993.
Factual error: When Helen is launching the video that shows the girl turning into worms (the killer's next victim later found at the dumpster), typing "tomorrow.avi" as she does would have returned an error in Linux. She should have typed "call tomorrow.avi" to launch the video. (00:43:00 - 00:44:00)