When the young Henry Hill is arrested for selling black-market cigarettes, the cartons bear UPC barcodes. A barcode is also visible on a bottle of washing-up liquid on the windowsill as Johnny and the lads make spaghetti in the late 1950s. Barcodes first appeared in 1966, were adopted as an industry standard in 1970, and the first barcode scan took place in 1974.
In the sequence that opens with "Idlewild Airport, 1963", Henry is leaning against a 1965 Chevrolet Impala.
In a scene set in the early 1970s, the restaurant's front door displays Visa and Mastercard logos; at that time Mastercard was known as Master Charge and Visa as BankAmericard.
As Henry and Karen move through the nightclub's kitchen, they walk past a cook sporting a contemporary Mets cap.
In 1980, when Lois makes the call that seals Henry’s fate, her Trimline handset bears the 1984 AT&T logo.
Towards the end, whilst Henry waits for the helicopter, his 1979 Cadillac Coupe DeVille Paeton is fitted with a rear brake light that was only introduced in 1986.
When Paulie's home is first shown, a cable for television is clearly visible on the outside. Cable television only reached New York's outer boroughs in the mid-1980s.
Henry confronts Karen's neighbour Bruce in the early 1960s. Bruce's friend on the left-hand side of the screen is wearing Adidas Superstar (shell-toe) trainers, which were first produced in 1969.
In a scene set in the mid-to-late 1970s, Henry peers into a bag packed with twenty-dollar notes. They're signed by James A. Baker, who served as Secretary of the Treasury in 1985.
In a scene set in 1963, the bass guitarist in the restaurant band is shown playing a Gibson EB-2D, a model that was not introduced until 1966.
While on their date at the Copa, Henry and Karen sip champagne from oversized flute glasses. Although a 4 fl oz flute was introduced in the 1930s, the larger flutes pictured did not become popular until the mid-1970s. Henry and Karen should've been drinking from coupe-style glasses.
A McDonnell Douglas DC-10, which entered service in the early 1970s, can be seen in one of the 1960s airport scenes.
When Henry escorts Karen to the Copa, they slip in via a service door and thread their way along several passageways before finally emerging into the dining room. The fire extinguisher beside the kitchen is a modern pressurised CO2 unit bearing an OSHA filling inspection tag, which wasn't required in the 1960s. At that time, most extinguishers were either the dry-powder, push-handle variety (similar to older insect sprays) or gravity-fed liquid units that worked by turning the cylinder upside down and directing the nozzle.
The closing notes state "In 1989, Henry and Karen Hill separated after 25 years of marriage," which implies they were married in 1964. However, in a scene set before their marriage, a 1966 Corvette is parked opposite Karen's mother's house.
In a sequence labelled "Brooklyn, 1955", the camera follows Henry as he runs to his shift at the taxi rank. Part of the shot looks through the telegraph poles to reveal the surrounding neighbourhood. The frame also includes a contemporary cable-television amplifier.
Whilst Henry and Karen are parked watching Bruce and Henry pistol-whips him, Henry's car and another vehicle parked across the road are missing front number plates. The state of New York requires both front and rear number plates.
Young Henry Hill wears a pair of Clark's Wallabies throughout. That cannot be correct for 1955, as Clark's did not introduce the Wallabies until 1961.
In 1963 a Boeing 747 is visible flying above Idlewild (JFK) Airport.











