Factual error: At the end of the movie, a pack of Lucky Strike cigarettes is shown on Ness' desk. The circle on the pack is red. Before America entered World War Two, Lucky Strike cigarettes had a green circle. The red circle was added with the ad campaign, "Lucky Strike is going to war."
Suggested correction: This entry is wrong.
While the correction could stand to be more specific, the entry is wrong. The Lucky Strike circle has always been red. The redesign came from switching from a green box to a white box (which Lucky Strike marketed the change as a way to support the war). The pack seen on the desk is green, indicating it's before WWII.