Goofs

When the Belle is landing at the end of the film, its ball turret is quite clearly intact and positioned correctly for landing. Earlier it had been completely shot off.

When the crash-landed B-17 slides to a stop, the name and artwork is visible on the nose. When the view changes to just before the plane explodes, the nose is unmarked.

Jack realizes that Eugene had put a sign on his back, and takes it off. In the next shot, he still has it taped to his back.

When the B-17 crash-lands near the beginning of the movie, each propeller on the left wing looses a blade and the two remaining blades are shown pointing down and unbent. When the airplane is shown sliding along and coming to a stop, the propellers have all three blades, but each blade is partially broken off and has been bent back. This is the damage that would be expected in the first shot, especially with the outboard engine.

When Dennis is starting the Memphis Belle's engines, he flips the same switch on twice to start different engines (the far right switch).

In Memphis Belle the bomber force is ordered to circle back to the Initial Point when the Primary Target is obscured by smoke or cloud cover. In reality, this would NOT have happened. First, it is VERY hard to have a formation of 300-plus Forts make a 180 degree turn. Second, such a maneuver would alert all flak batteries as to the actual target. Third, such a maneuver would keep the force under fighter attack longer than need be. In actuality, bomber crews were briefed on a primary, a secondary, a tertiary and targets of opportunity. If the primary target was unable to be hit, the primary became the IP to set up on the secondary. If the secondary were unable to be hit, it became the IP for the tertiary, and if that were unable to be hit, the force commander (NOT the pilot of the lead aircraft) would issue an order to go after targets of opportunity. Failing that, the mission would be aborted and the crews would dump their ordnance in either the North Sea or the English Channel. The mission would count toward tour completion, as the crews would have been in combat, and were over enemy territory.

The Norden bombsight is depicted in the film as a simple vector bombsight, with the ground moving past the sight due to the forward motion of the airplane, and the bombardier toggling the bomb release switch when the target moves through the crosshairs. In reality, the Norden bombsight was a tachometric bombsight, which continually tracked and automatically released the bombs when the precomputed bomb release point was reached. The job of the bombardier was to make the adjustments necessary to keep the crosshairs stationary on the target. Any forward motion of the crosshairs relative to the target would indicate an error in the ground speed estimate, which would cause an error in the calculated bomb release point.

Several times during the mission, two crew members (pilot and co-pilot, bombardier and navigator, the two waist gunners) talk to each other with slightly-raised voices without using the intercom. This would have been impossible in real life. The B-17 was a combat aircraft with no soundproofing insulation. To be heard, one crewman would have to place their mouth next to the ear of the other crewman and shout at the top of their voice in order to be heard over the noise of the engines.

Navigator Phil Lowenthal mistakenly calls out that the Belle is at the 'Rally point' on their arrival near the target. In fact it's actually the 'Initial Point.' The 'Rally point' as the name suggests is where the group flies to after the bombs are dropped to reassemble the formation before heading home.

In Memphis Belle the bomber force is ordered to circle back to the Initial Point when the Primary Target is obscured by smoke or cloud cover. In reality, this would not have happened. First, it is very hard to have a formation of 300-plus Forts make a 360 degree turn. Second, such a maneuver would alert all flak batteries as to the actual target. Third, such a maneuver would keep the force under fighter attack longer than need be. In actuality, bomber crews were briefed on a primary, a secondary, a tertiary and targets of opportunity. If the primary target was unable to be hit, the primary became the IP to set up on the secondary. If the secondary were unable to be hit, it became the IP for the tertiary, and if that were unable to be hit, the force commander (NOT the pilot of the lead aircraft) would issue an order to go after targets of opportunity. Failing that, the mission would be aborted and the crews would dump their ordnance in either the North Sea or the English Channel. The mission would count toward tour completion, as the crews would have been in combat, and were over enemy territory.

Due to a shortage of aircraft, the B-17s assembled for the film had two sets of marking, one on the right side and one on the left. During the take-off scene, several shots reveal that the bombers have two different names and mascots.

Had this been true, this crew would have definitely been blown out of the sky immediately. You have the navigator drunk with a hangover, two gunners fighting over a medal and lack of dates and the co pilot not focusing on flying a dangerous mission.

There were errors after the Belle landed. First, many ground crew raced and crowded around the damaged and burnt aircraft. If it exploded, there would be death and injuries. Second, Dennis sprayed champagne which no pilot would ever do near a damaged aircraft.

The film is set in May 1943. However, in a closeup shot of the bombardier's position, there is a data book dated 12 Oct 1944 on top of the bomb sight.

During the pre-flight, Sgt. Danny "Danny Boy" Daly, the radio operator, conducts a radio-check saying, "Charlie, Victor, Uncle, Tango". He is using the modern NATO Phonetic alphabet. During WWII, he would have used a different phonetic alphabet and said, "Charlie, Victor, Uncle, Tare".

On the return flight, Val administers closed chest compressions with his hands. This type of Cardiopulmonary Resuscitation was not advanced until the 1960s and would not have been used in 1943.

Features P-51 Mustangs in May 1943, several months before they were introduced into the European theatre.

(at around 1h 35 mins) When flying over a field, a modern white car can be seen running on the road on the upper left corner.

Just prior to the mission when Clay is discussing the odds of a successful trip with the crew, he closes with the line "Basically we're finished". However he appears to mouth the word "f***ed".

The captain states that he wants to drop the bombs "right in the pickle barrel" to avoid hitting a school that is right next door to the factory, resulting in the deaths of innocent Germans. However, since the air formation always carpet bombs their target (the formation spans a few hundred yards across), this would always result in civilians being hit. Even so, only about 20% of the bombs aimed at precision targets fell within the target area. So, regardless of what the captain was trying to avoid, civilians would still be killed.

During the scene where Danny pulls out the liquor bottle, and Rascal sneaks up behind him to grab it, for a split-second, you can see Danny grin. Eric Stoltz probably happened to see Sean Astin coming in the reflection on the bottle, and without doubt it looked kind of funny to him.

Captain. Dennis Dearborn was extremely strict on procedures and safety of his crew. If so, he should have checked on them properly before take off. Phil, having a hungover and having thoughts of dying, should never be allowing to fly. Val lying about being trained as a doctor should have admitted it. His co-pilot Luke wanting to handle guns is against regulations.