Goofs

Considering the beating Coogan took to the head and face during the pool room brawl, he didn't have a mark on him the next day.

Near the start, when Coogan first meets Julie, he has a cigarette held firmly in his mouth. In the next shot, the cigarette disappears.

When Coogan enters McElroy's office for the first time, he alternates from standing square in front of the door, to standing to the left of the door frame and back again between shots.

At the end of the film, the helicopter shown landing on the Pan Am building has registration N6682D. However, Coogan is depicted as taking off in a helicopter with registration N107PA.

(at around 28 mins) The bellman opens the shade and the window. Shortly later, Clint opens the window again. However, the bell hop opened the window only half-way; Coogan opened it fully, so he could stick his head out.

Clint Eastwood falls off his motorbike to the left at the top of the second set of steps in the final chase because he ended up too close to the wall.

In the beginning of the film, after making the arrest, Coogan stops outside a house. Multiple studio lights are seen reflected in his sunglasses. The same thing happens when he is on the porch of the house after snuffing out his cigarette.

While in New York, Coogan is asked several times if he's from Texas, due to his cowboy boots and hat. Invariably Coogan responds that he's from Arizona. However, in the film's opening scenes, the badge on his deputy's uniform indicates that he works for the Piute County Sheriff. Piute County is in Utah.

While it is true in reality that there is no Piute County in Arizona, in the fictional movie setting, Piute County, Arizona does exist as shown by the note from Sheriff McCrea that Lt. McElroy hands to Coogan in his office (after Coogan blew the stakeout and was "brought in" for impersonating an officer).

Lampposts: The movie is set in New York yet shows side street lighting usually found in San Francisco. By 1967, half of New York had replaced street lighting with new aluminum poles, and those that had not been replaced would have seen the more common 'bishops crook' masts or long arm' poles.

This sequence was shot in the Universal Studios California back-lot.

The police have an undercover cop staking out Ringerman's mother but don't have anyone watching his girlfriend.

Toward the end, it is revealed that escaped convict James Ringerman's hideout has been the Cloisters in Fort Tryon Park in Manhattan. This would have been impossible, as the Cloisters is a popular Medieval art museum that is open o the public during the day and locked up at night with security in place. Yet Ringerman is shown emerging from inside a clearly empty Cloisters during the day, as though the place was a private residential property.

When Coogan and Julie Roth are walking on the scenic viewpoint overlooking the cloisters, the shadow of the boom mic is visible at one point.

The character played by James Edwards (the undercover detective on the stairs in Mrs. Ringerman's apartment) is called "Sgt. Wallace" during the movie. However, in the closing credits, he is credited as playing "Sgt. Jackson".

Julie's file drawer marked N-R has the Rs up front, going Rice, Root, Richards, Raven, an unworkable system.

Coogan gets bushwhacked in the hotel when he's answering the phone page. However, as he's illegally transporting his prisoner, there would be no reason for him to acknowledge his presence by answering the page.