Blooper

When C is fixing his bike on the sidewalk his hands are black from the grease on his bike chain. When he goes into meet Sonny, both of his hands are clean.

Early in the movie, when we first see Calogero on the bus, he's wearing a white dress shirt. When Lorenzo drops him off at their bldg, Calogero is wearing a white T-shirt as he looks up at his Mom. After we see his Mom in the window waving, he has the dress shirt on again.

When Lorenzo comes outside his apartment building with young Calogero to give Sonny back the money, it's daylight. When he's walking into the bar (2 doors away), it's beginning to turn dark, and when he walks out of the bar 2 minutes later, it's nighttime.

When Phil gives Calogero the peaches it's daylight. He goes upstairs & he's confronted by his parents about the money he got from Sonny. They go to the bar to give the money back and it's dusk. They give the money back to Sonny and leave the bar, and it's now dark.

When Jane and Calogero first meet in front of the school, a couple walk down the stairs and in the next shot the same couple are back on top of the stairs

When Calogero has walked Jane home and they're talking as they're getting ready to part there is a 1968-era blue and red mailbox next to a Volkswagen up the street behind him. However across the street behind Jane there are several boys are standing around a modern olive-green colored one.

In 1968, exact fares were not required on NYC Buses. That didn't happen until August 31, 1969 but the fare box on C's dad's bus said exact fare.

C's voice over at the start of the Aqueduct racing scene states that the Yankees were in last place in 1968. The Yankees were actually in 5th place out of the 10 American League teams of that year. It wasn't until the following year that the AL split into divisions.

Right after it is stated it was 1968, and they got their own social club, two girls walk by. They walk past an obviously old, 1969 Plymouth.

Calogero's friends are racist and don't like African Americans but when it shows the scene where Calogero goes for a ride in their car they are playing "All Along the Watchtower" by Jimi Hendrix.

When C gives Sonny his car back after his date it is late at night. A few minutes later when he is arguing with his father in his bedroom there is daylight coming through the window. It is not "sunlight" coming through the window into the bedroom as C speaks with his father. It is actually white or "incandescent" light coming though the window, into the room. The white colored light emanates from the many streetlights, lining the curbs, that are mere feet from the building/windows. Besides the tall streetlights lining the curbs, there are also smaller light fixtures, with the same colored bulbs, hanging at minimum intervals from the individual building themselves.

Approximately one minute passes in real time between when Sonny shoots the man in the street and when the detectives knock on Calogero's parents' door to question him.

The detectives tell his parents that there was a shooting 'a little while ago' and that 'there were people who saw [Calogero]' in front of the building, implying they had already questioned some of the witnesses.

However, even if the detectives were already in the neighborhood at the time of the shooting (and there is no reason to think they were), there is simply not enough time for them to do any of this.

Several times throughout the movie you notice all the store awnings have the same address "667" for each store.. clearly seen right before little C goes with police to the lineup after the parking spot shooting.

Toward the end of the opening credits a mid 80's Ford Escort can be seen directly behind the bus driven by Robert De Niro's character.

The inspection stickers on the red Cadillac convertible and the green Chevy Caprice are on the outside of the windshield. In reality, the stickers go on the inside of the windshield.

After Coffee Cakes is brought to the bathroom, in one of the next shots you can still see that Coffee Cake's body from the waist down is still visible. In the left of the frame is his body and to the right is the brick wall. The clothing that Coffee Cakes is wearing gives it away that it is him.

When the detectives are first bringing Colagero out to the street after the shooting by Sonny, an electronic siren can be heard winding down and cutting off mid-tone. Only motor-driven sirens were available on emergency vehicles during this period.

When Calogero is a boy in the movie it is 1960. The lower baseball on his jacket says METS. The Mets where not a team until 1962. At the time there had been no announcement of the team name Mets.

The Beatles' "Come Together" is playing in Sonny's bar just before and during the "biker" scene. This song would not have been available on a jukebox, radio or anywhere else in 1968. It was not recorded until July 1969, and was not released until the fall of 1969.

The red and black destination signs shown on the GM old-look buses during the 1960 scenes weren't used until the late-'70s. The early signs were simply black and white.

It's supposed to be 1960 but the parking meters on the street where "C" lives are the new kind with the slits for coins rather than the slots. These parking meters did not exist until 1973.

In the beginning of the movie, when the driver of the pink car tries to get his girlfriend to get back in the car, the dialogue heard does not match the lips of the actor.

When Satan's Messengers are pulling up to the bar, you can see the street blocked off by a police officer and a crowd of onlookers watching the filming.

Stunt men are visible in the car just before it explodes from the cocktail grenades.

When Calogero is made to ID the killer and doesn't rat, the crowd is seen nodding in approval of doing so. However, the reason C was even made to ID was that someone in the hood ratted HIM out by telling the detectives he saw the murder. Additionally whomever ratted C out obviously was there as a witness to the murder too, so in fact he or she used a child to keep from testifying.

Early in the movie, after Lorenzo confronts Sonny in the bar about staying away from his son, Calogero (as narrator) says it was the last time Sonny and his father ever spoke. However, later in the movie, right after Sonny questions Calogero about the device found on the engine of his car, Lorenzo and Sonny do speak again during a physical altercation.

When in the confession booth, the priest asks Calogero if he knows the 5th Commandment. Calogero eventually answers "thou shall not kill" and the priest replies that is correct.

'Thou shall not kill' is actually the 6th Commandment.

The 5th Commandment is 'Honour thy Father and thy Mother'.