Continuity mistake: The Angel of Death, judging from the position of the lid of the Ark (the two angels can be seen below the ghost), is located just above Dietrich's head. However, Toht screams as if it were right in front of him and Dietrich as if it were in front of Belloq (judging by their looks).
Continuity mistake: The distance between Otto and the Nepalese changes between shots, just as Toht begins saying "Surely he told you..."
Continuity mistake: In the shot after Belloq's death, the generator and the rock Indy and Marion are on disappear.
Continuity mistake: As Dietrich and Gobler come into the tent, Toht's leather case can be seen already opened. In the next shot, the case is suddenly closed.
Audio problem: After Dietrich pours liquor for himself, he speaks to Belloq. One of the words of his phrase (probably monsieur or Belloq) was cut from the audio as Dietrich's lips still move but nothing can be heard.
Visible crew/equipment: During Marion and Belloq's beverage contest, a round klieg lamp's blue light stands behind Belloq, which sometimes changes its intensity. Also, when Marion grabs the knife, behind her a moving light can be seen (like a helicopter's light), which disappears a few seconds later. This light also appears for a few seconds when Toht frees Marion's arm.
Continuity mistake: When Indy abruptly brakes the truck and the Ark box slides backwards, the poles on either side of the box disappear for the rest of the chase.
Audio problem: Just before Belloq opens the staff car's door, Paul Freeman's voice can be heard saying "Let's get out of here" but Belloq's lips don't move.
Audio problem: After Dietrich says "And Gobler, I want plenty of protection", a German voice can be heard saying "Jawohl, Herr Oberst", just before the tower behind Belloq explodes. This voice sounds extremely close to the three villains, although neither of them have spoken, and there are no more people next to Dietrich.
Continuity mistake: During the procession, after Indy hides behind the box, Captain Mohler can be seen walking with the soldiers behind the Ark. In the next shot, he's walking in front of the Ark.
Continuity mistake: In the first scene of the procession, the Nazis are walking in a straight line along a path. In the next shot, they are now going around a curve.
Continuity mistake: When Marion gets off the submarine, there are two soldiers behind her. In the next shot, one of the soldiers has disappeared.
Continuity mistake: When the Wurffler arrives to Geheimhaven dock, six soldiers and an officer are running towards the submarine. In the next shot, the seven men have disappeared.
Visible crew/equipment: Just before the shooting starts at The Raven, you can see that Otto's shadow movements do not match the German's movements. Also, when Marion fights with Toht, behind her you can see the shadow of a man with short hair and no hat moving to the left (Indy still has his hat on during this scene).
Continuity mistake: During the procession scene, in the shot before Toht takes off his hat, about twenty soldiers can be seen walking. After Indy leaves the procession and hides behind a box, in the next shot, there appear to be twice as many soldiers as in the first scene. Just before Indy shouts "Hello!", the quantity has returned to twenty.
Continuity mistake: After the kliegs behind Dietrich, Belloq, and Toht explode, the Ark's energy begins to destroy the soldiers' guns and the kliegs next to them. In some shots, the kliegs on the altar are still working.
Character mistake: In the original Latin Spanish dubbing, Dietrich calls Gobler "Glober" while walking next to the destroyed Flying Wing.
Continuity mistake: Just before Belloq says "It's beautiful!", there is a black machine (which is not the German camera or the generator) in the bottom middle of the screen, just below the approaching ghost. It is also visible when the Angel of Death is revealed. This machine disappears when the Ark begins to kill the soldiers.
Continuity mistake: After the kliegs and generator explode, there is a shot of Belloq and Toht on the altar. Belloq has the ivory rod in a vertical position. In the next shot, the rod is horizontal.
Continuity mistake: When Indy and his excavation team arrive at the true location of the Well of Souls, we can see that it is on a low hill, just a few meters from the Nazi excavations. However, when it gets dark, we can see that the excavations have disappeared from view and now the Well of Souls appears to be on a considerably high mountain (taking as a reference the illuminated camp on the right of the screen).
Answer: Indy and Marcus Brody believed that the Ark needed to be studied. They certainly didn't want to put it back where it was found. They believed that the U.S. government would find the best archaeologists, researchers, and scientists in the world to study the Ark. They are both upset that instead, the government has decided to simply lock the Ark away. This is why Indy says, "Fools. They don't know what they've got there," as he is leaving the building.
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