As Michael arrives in Las Vegas — ostensibly set in the early 1950s — he, Fredo, Tom and others alight from the car on the hotel forecourt, and through the lobby window two long-haired, bearded "hippy types" from the early '70s can be seen. (On the DVD commentary, Francis Ford Coppola admits he finds the error embarrassing, saying the shot was filmed cheaply by the second unit.)
When Michael moves his father's bed from the hospital ward into the corridor, there is a sign on the wall above Michael's shoulder that lists Robert O. Lowery as the Fire Commissioner. He served as Commissioner in the 1970s, not the 1940s — the sign should have read Patrick Walsh.
When Michael discovers his father left unprotected in hospital, he picks up the bedside telephone to alert the family. The handset is attached to a coiled cord that didn't become available until the mid to late 1950s.
When Apollonia drops her nightdress, faint tan lines from a bikini top are visible. Given her family's values, she would not have been permitted to wear a bikini.
In several scenes, wine bottles appear bearing the Italian DOC wine classification label, yet the DOC system did not come into effect until 1963.
When Capt. Mark McCluskey confronts Michael Corleone outside the hospital, a conversational female voice can be heard emanating from the police vehicles' radios. However, at that time the New York Police Department's primary radio system was limited to one-way transmissions from headquarters, with male police officers at the microphones.
In late 1945, the Empire State Building is depicted with the 222-foot television aerial, which it did not receive until 1950.
A newspaper is shown carrying an article about Don Corleone's discharge from the hospital. In the lower-right corner there is a Table Of Contents, the first item of which is "TV-Radio Listings." If TV listings existed at all in 1946, they would not have been placed ahead of radio listings.
Michael reads a New York Mirror account of his father's near-fatal brush. The page is a forgery, though it was inserted into a genuine newspaper that appears to be the NY Daily News. On the facing page there is a report about a Catholic Mass celebrated at St. Patrick's Cathedral, credited to a reporter bearing a Hispanic surname — a byline from a member of a minority community that would not have appeared in the News at that period; minorities did not attain reporter status at that paper until the late 1960s or early 1970s. Furthermore, the barely legible text in the article states the Mass was said by Terence Cardinal Cooke, who at the time was serving as a parish priest and was not made a cardinal until 1969.
While Carmela 'Mama' Corleone sings at Connie's wedding, the pianist positioned above and to our right is wearing plastic-framed spectacles characteristic of the 1970s.
As Vito is brought home in the ambulance, the kerb at the side of the road is painted yellow to indicate "no parking". However, this practice was not adopted until the 1960s.
Tom Hagen flies to California to see a film producer aboard a Lockheed Constellation. The earliest production example of the Lockheed Constellation was not produced until 1947 and only entered commercial service afterwards. Tom's flight apparently took place in 1945 ("almost 1946" according to the film's dialogue).
Woltz International Pictures' principal gate displays the rear of a car that is either a 1952 or a 1953 Chrysler.
During the scene in which Vito is brought home by ambulance, a pale yellow 1947 Lincoln Convertible is also visible. Per Hagan, however, it is meant to be a 1945 model — "almost 1946".
The accordion played in the wedding scene was an 'Excelsior' model that was not produced until the 1950s. The same applies to the 'prop' accordion seen during the shoot-out, which is shown on a chair with its bellows open. Earlier accordions did not have those features.
When Vito Corleone returns home from hospital, a newspaper headline is shown reading "Syndicate Big Shot Corleone Goes Home" and the paper's contents page displays "TV / Radio". It seems unlikely that newspapers would have carried TV listings in the 1940s.
Shortly before he is shot, Don Corleone buys fruit from a greengrocer. The cardboard boxes of Sunkist oranges visible in the scene display branding that wasn't introduced until the 1970s. In 1945 most oranges were still transported in wooden crates.
The stop sign in New England when Michael returns from Sicily (prior to his father's death in 1953) is red and white. At that period, however, stop signs were yellow and black and did not switch to red and white until the mid-to-late 1950s.
After Michael Corleone murders Virgil 'The Turk' Sollozzo and Capt. Mark McCluskey, a sequence of newspaper headlines is shown. The final headline accompanies an article titled "Syndicate Big Shot Vito Corleone Returns Home". In the corner of that paper is an "Index" featuring a line that begins "TV/Radio". In 1945 or 1946 there would not have been TV listings, even in New York papers, since so few people owned television sets at the time.
Shortly before Paulie is killed, the car is shown driving past a stretch of crash barrier supported by steel posts, first introduced in the mid-1960s.
At the Don's funeral, the heads of the other crime families arrive in Cadillacs from the mid-1950s, vehicles that postdate their on-screen murders by several years; those murders are consistently placed in the series as occurring in either 1950 or 1953.
(1:53:44) Following Sonny's shooting, in the toll-booth shot a yellow 1970s car can be seen passing outside the window.
As Sonny drives towards the fatal toll booths, a microwave tower is visible in the background of the shot.
The hairdressing, make-up, costumes, props and many elements of the set dressing generally do not match the period in which the action is meant to take place (1942) and instead look more characteristic of the early 1970's — for example, Al Pacino's long sideburns as Michael Corleone and Diane Keaton's hairstyles.
The revolver Michael uses to shoot Virgil 'The Turk' Sollozzo and Captain Mark McCluskey is a recently manufactured Smith & Wesson Chief's Special.
A building reflected in the police car's window during the assassination of Barzini was constructed more than a decade after the scene is set.











