The device, on the heel of his boot, that the Batman uses to summon a swarm of bats is taken directly from Frank Miller's "Batman: Year One".

A second stage Scarecrow look was created for the hallucination scenes but was never shown on film. The mask was more organic and tighter around the actor's face.

Before Christopher Nolan took over, director Darren Aronofsky was attached to make a Batman movie based on the graphic novel "Batman: Year One" and have the author Frank Miller write the screenplay. By 2003 there was a first draft screenplay with story boards, which are properties of AOL Time Warner. Warner's decision for not producing the film is unknown, but based on the details that have since leaked out, it would probably have to do with the screenplay, which strayed a considerable amount from the source material, making Alfred an African-American mechanic named "Big Al," the Batmobile being a souped-up Lincoln Towncar, and Bruce Wayne being homeless, among other things. This is all detailed in David Hughes' book "Tales from Development Hell."

The wide-shot of the house of the League of Shadows was entirely computer-generated.

Before Christian Bale was cast as Batman, many other actors were considered for the role, including Ashton Kutcher, David Boreanaz and newcomer Hugh Dancy.

Only days before the role of Batman was cast, eight actors were asked to audition for the part. The actors were Christian Bale, Joshua Jackson, Eion Bailey, Hugh Dancy, Billy Crudup, Cillian Murphy, Henry Cavill and Jake Gyllenhaal. While Bale won the part, Christopher Nolan liked Murphy's audition so much, he cast him as Dr. Jonathan Crane/The Scarecrow.

Christian Bale lost his voice three times during filming after altering his voice while playing Batman.

During filming of the scene where Batman is being towed by a train through the streets of Gotham, so much steam was used that after each take that it would "rain" on the cast and crew for several minutes.

Marilyn Manson was considered for the role of Dr. Jonathan Crane/The Scarecrow.

The Batmobile, 9 feet wide and 16 feet long, has a top speed of 106 miles per hour and can accelerate from 0 to 60 miles per hour in 6 seconds. The engine is a 5.7 liter V8 Chevy. It runs on unleaded gas and can do about 7 miles per gallon. It has four 44-inch tires at the rear, made by Interco Tire Corp, while the front is covered in jagged plates of armor. It was designed and built by 'Chris Corbould' and Andrew Smith at Shepperton Studios in England. This Batmobile was built from the ground up and is estimated to be worth half a million pounds. It was designed by mashing together several different off-the-shelf model kits; its construction was so exacting to the model that they even duplicated the blobs of excess glue.

Director Christopher Nolan decided that there would be no second unit, and so for the whole of the one hundred and twenty nine shooting days Nolan oversaw every shot of the film personally.

The name of the commissioner on the film is "Loeb". However, this is NOT a reference to comic book writer Jeph Loeb, author of the graphic novels "The Long Halloween" and "Dark Victory", but rather simply the canonical name of the Gotham City police commissioner when Bruce Wayne returns to Gotham. This is shown in Frank Miller's Year One, which actually influenced both "The Long Halloween" and "Dark Victory" and was published nearly a full decade before either of these.

Christopher Eccleston was rumored for the role of Dr. Jonathan Crane/The Scarecrow before Cillian Murphy was eventually cast.

David S. Goyer said that the graphic novels "The Long Halloween" and "Dark Victory" by Jeph Loeb were a huge influence on his screenplay. When he was asked the question, "What about Frank Miller's Year One?", he replied, "Our story is not Year One." An early draft of David S. Goyer's script leaked onto the Internet in April of 2004.

This is the first movie to use the new DC logo.

Much of Batman's gear and apparel, includin

Continuity

(at around 27 mins) After Rachel slaps Bruce in the car outside Falcone's, his hair is messed up; the next shot it's nicely combed; and the next it's messed up again.

(at around 5 mins) When Bruce is thrown off the truck after being released from prison, his bag is several feet away from him. In the next shot it is at his feet.

One Arkham inmate is named Victor Zsasz in the script and source material, but is listed as "Zsaz" in the credits.

(at around 1h 45 mins) When Bruce is hit by the burning wood, it rolls off him to his feet as he falls back and hits the floor. As soon as he hits the floor and is unconscious, its placed as if it landed on his chest.

From 1:01:36 -the barrel of the sub-machine gun goes back and forth from smoking to not smoking.



Factual errors

(at around 1h 5 mins) Searchlights like the one Falcone is tied to are incredibly hot. Anyone held against one like that would be horribly burned.

(at around 1h 26 mins) You cannot open a water main and see water flowing through it. Water mains that feed uses including sprinklers are pressurized to over 150 psi. Opening a main in the fashion shown would have flooded the basement in minutes. Also, mains serving other areas do not pass though buildings.

In the beginning of the movie when the young Bruce Wayne is in the police station following his parent's murder, he is consoled by a uniformed Jim Gordon. On Gordon's shoulder epaulettes there are clearly lieutenant's bars, yet later in the film it is said more than once that Gordon was a sergeant at the time. That rank would have put chevrons on his sleeves and collar tabs, not bars on his shoulders.

Beginning at 1:59:50 until 2:00:57, Batman flies through The Narrows hanging from the elevated train by his monofilament. This is impossible because the monofilament would hit the structure that holds up the train.

In the ending credits "supervising" is spelled "supervsing" missing an "i".



Incorrectly regarded as goofs

The movie appears to be set in 2005, yet scenes set in Bruce Wayne's childhood feature the same 2000s-vintage automobiles as in the present day scenes. Shouldn't his childhood be in the 1980s-90s? It is common in Batman comic books to fill scenes of Wayne's childhood with deliberate anachronisms, to obfuscate the era when his origin took place.

(at around 1h 8 mins) If the microwave emitter really evaporates all water in the vicinity, in theory it should also kill everyone standing near it, as human bodies consist mostly of water. However, it is mentioned earlier in the film that the emitter uses "focused microwaves" specifically designed to target an enemy's water supply. For the safety of those operating it, the device was presumably designed only to affect water at certain levels of pressure.

(at around 1 min) The position of tree branches over the water well young Bruce falls in changes. The branches look one way (from the bottom looking up) when Rachel calls down, but it appears to be a different tree when Thomas Wayne lowers himself to rescue Bruce. This may be a deliberate, as the scene is a subjective view of a confusing, traumatic moment, when memory can become unreliable.



Revealing mistakes

(at around 1h 30 mins) During the roof jump part of the Batmobile chase there is a police officer who orders Batman not to move on the bullhorn. He is the same actor that later delivers the line 'Can you at least tell me what it looks like?' as the Batmobile whizzes past him. (In mitigation, they could be twins.)

(at around 40 mins) Ducard should be unconscious while sliding down the mountain side, but he still keeps his head elevated away from the ice.

At 0:22:58 -the rounds in the revolver have primers which have been colored blue to indicate to all on- and off-set persons that they have been rendered inert.

At 0:19:18 -a plastic water jug is seen on the ice, bottom left.

At 0:19:18 -a coffee cup can be seen, bottom center.



Audio/visual unsynchronized

(at around 1h 40 mins) Bruce Wayne's birthday party - the birthday song does not match the lips of the party-goers.

(at around 1h 40 mins) Before Bruce makes his speech at the birthday party, he knocks at a wine glass twice, producing two differently pitched tones. In reality, it should be the same tone, because the pitch is defined by the level of liquid inside the glass.

As Ra's Al Ghul is placing the blue rose under Bruce's lapel, he says "Tell me, Mr. Wayne, what do you you fear?" The word "you" is repeated (presumably having been resynchronized).



Crew or equipment visible

(at around 1h 30 mins) During the wide shot depicting the batmobile sitting idle atop the parking garage, a swift sweep of the SWAT helicopter's spotlight reveals dozens of cast and crew packed into the elevator waiting area.

(at around 1h 35 mins) There is a stunt ramp visible when the second police car flips during the city chase.



Errors in geography

(at around 1h 35 mins) During chase of Batmobile after rescuing Rachel from Arkham, the police helicopter pilot says, "in pursuit of vehicle heading west on I-17." Odd numbered Interstate highways run north-south, while even numbered interstates run east-west.



Plot holes

Rachael has been poisoned with a hallucinogenic drug that will "damage her mind" yet she is kidnapped by the mysterious Batman and subjected to, arguably, the most harrowing car ride ever endured by a human being yet she suffers no ill consequences from the experience.

Microwaves cannot penetrate metal, or even a metal mesh. That is why you don't place metal objects into a microwave oven and also why the front of the oven can have a glass window- because of the metal mesh embedded in it. So the whole plot of vaporizing the drugs in the city water lines is a nonstarter.

The explanation of how the gas works is inconsistent. Wayne's GF has to be rushed to get the antidote or it will ruin her for life. But later people are inhaling it like the little boy she helps for a long time. It's a literal fog over the whole place. Also Rahs Al Guhl and his henchmen use gas masks, but earlier they say that the antidote protects one from the effects of it. They would have inoculated themselves and no need for masks.

Woodworks that are over 100 years old in a damp cave are still in good condition.

Apparently the RICO Act, which was passed in 1970, does not cover Gotham.



Character error

The Gotham City police cars have a large "GPD" on the side but the abbreviation used on jackets is "GCPD".

(at around 44 mins) A newspaper article has the phrase "loose faith" when "lose faith" is meant. In the same article, the all-caps "METHAMPHETAMINE" is spelled "METAMPHETAMINE."

From 0:10:28 -a billionaire wearing poorly fitted trousers.