Corrected entry: Harrison turned down a 7th Star Wars movie in favor of this one, even though the Star Wars one would have paid more. However, [SPOILER ALERT:] because of the involvement of aliens in the movie, many super-fans are calling it "A pitiful attempt at Star Wars VII."
Corrected entry: When Indy and Mutt arrive in Peru, the music in the background is Mexican music, not Peruvian music.
Correction: No laws against playing Mexican music in Peru; Peruvian music would have been more likely, but it is not a movie mistake.
Corrected entry: The hotrod in the opening chase scene has a Chevrolet engine in it, even though it is a Ford car. That was not uncommon to do in the fifties, but the speed equipment on the engine would have not existed in 1957, as it was not until the early to mid-sixties that market speed parts were produced for the small block Chevy engine, something that the car in the shot is equipped with.
Correction: The small block Chevy debuted in 1955, with a displacement of 265c.i., and by '57 the were many hop up goodies available for them. While the particular parts in question may not be period correct, there were indeed aftermarket parts available in 1957. If you want to get technical, the engine seen in this '31 A is a 327, which wasn't produced until '62, the Holly carb is a later model, and the front tires are radials, but to say that no speed equipment was available for small blocks in '57 is just plain incorrect.
Corrected entry: When Indy is questioning a local peasant in Cuzco moments after arriving, the music being heard is distinctively Mexican when it should have been Andean.
Correction: Amazingly, I heard some Andean music being played in the street earlier today, when, by your standards, only English music should be permitted. Musical styles travel.
Corrected entry: As Mutt rides his motorcycle alongside the train in his introductory scene, he yells, "Professor!" to get the attention of Indiana. In the diner scene that immediately follows, Mutt is oddly shocked at learning Indiana's profession when he exclaims, "So you're a professor?"
Correction: You've missed the point. Mutt later exclaims "You're a professor?" because Indy is fighting off so many bad guys. This is not the image of a Professor that Mutt had in mind.
Corrected entry: In the chase, Indy pulls out a rocket launcher at one point. Despite fighting the Russians with their own weapons, it is a Chinese copy of the famous RPG-7, distinguished by the lack of a rear grip. Also, these rocket launchers weren't put into service in the Red Army until 1961.
Correction: Submitted and corrected. it is not an RPG 7, but an RPG 2.
Corrected entry: Indy tells Mutt at the diner that Mutt "brought a knife to a gun fight." This is almost a verbatim quote from Sean Connery's character in "The Untouchables."
Correction: True, but the only connection between these movies is one actor. Who is only seen in a picture in Crystal Skull. This is not trivia regarding anything Indiana Jones related.
Correction: "Bring a knife to a gun fight" is an idiom that's been in use, probably, since guns have existed. There's no reason to believe this is a reference to The Untouchables.
Corrected entry: In the truck, after Marion tells Indy he is Mutt's father Indy asks why she never told him. She gives her reasons and then says it was why Ox had stopped talking to him (Indy) - but later in the film, after the alien spaceship has left, Indy and Mutt are talking like father and son on the top of the ruined temple and Ox appears amazed when he realises they are father and son.
Correction: Or he could be amazed that they "know" that they are father and son. He (Ox) has just come out of a semi-comatose state. Besides: presuming a person's state of mind isn't a mistake. It has to be conclusive what Ox is thinking (like verbal confirmation) to be a mistake.
Corrected entry: In the beginning, when the trucks are being stopped at the Army gate in Nevada, one of the guards raises the bar immediately, but in a new shot, it is down and stopping the cars from continuing.
Correction: The bar is raised to allow the guards to come through and speak to the people in the car. As they walk under it the bar can be seen lowering to the left of the frame.
Corrected entry: In the beginning scene, when Indy is taken out of the car, all he has on is just the one belt, but when he comes out of the refrigerator, he has both belts on with the whip attached.
Correction: He gets the whip off of one of the guards at the beginning of the gun fight.
Corrected entry: In one scene, Indy and the group are being held captive by the Russians and are being taken through a rain forest. After they hijack the truck that is transporting them, Indy destroys a deforesting machine with an RPG. The model of RPG that Indy fires wasn't invented until the 1960s.
Correction: Already listed and corrected. The RPG-7 was not invented until 1961, but the similar-looking RPG-2 was around at the time of the movie.
Corrected entry: In the warehouse scene at the begining of the movie, Indy climbs up some crates clutching a few shotgun shells and pliers. Using the pliers, he rips open the shell, yet no powder comes out, and the wad that is in all non-slug shotgun shells is missing.
Correction: In a shotgun shell (it is an old fashioned compressed cardboard cased one in the movie), when you cut the end off a cartridge like Indy did, only the pellets will indeed fall out, as the wad between the powder and the pellets is pressed into place, and does not come out easily. In modern shells it is a plastic wad, in older type shells it was a type of compressed felt.
Corrected entry: When a very wet Indy is getting decontaminated, you see the camera move back and then it shows Indy siting all dry on the chair, talking.
Correction: Yes, this is called a cut between shots, and is quite common in every movie being made. He was of course allowed to towel off after the decontamination, before the questioning started.
Corrected entry: During the chase scene, the pursuing car lands on the one Indy is sitting in, right by where the ants come out. When the vehicles collide, Indy loses the gun that is in the front of the car. Later, when the car is in the river, the gun has mysteriously returned. (01:25:00 - 01:28:00)
Correction: It's a different amphibious Jeep vehicle. The one they go over the cliff in is the one that Marion was driving, not the one Indy crashed into the ant bed.
Corrected entry: Throughout the movie Indy keeps referring to Orellana's quest for the City of Gold taking place in the 15th Century, which can't be, the Spanish didn't venture into the southern continent of America until the 1500's which would make it the 16th Century. An archaeologist would know that.
Correction: You're confusing two different things: The crystal skull was said to have disappeared from Akatur in the 15th or 16th century. But Indy is very specific in the diner scene that Orellana disappeared in 1547 looking for the city of gold.
Corrected entry: In the scene when the skull gets returned to the alien body, you can see an obvious editing pause and film misalignment when the skull flies from her hand to the alien body.
Correction: I've been replaying this moment over and over and see no editing pause or "film realignment" (whatever that even means).
Corrected entry: During the classroom scene, Indy assigns homework from a textbook by someone named "Michaelson". He mentions this same textbook in the classroom scene from Raiders of the Lost Ark.
Correction: Too obvious to be trivia. It's understandable that a teacher assigns homework from a specific author in different groups and years.
Corrected entry: When the refrigerator comes to a halt with Indy inside, the door suddenly pops open. This is not possible, because once latched shut, the door can only open if the handle is pulled outward. The latch is a secure physical connection no matter how much the refrigerator is banged about.
Correction: A fridge that's just been within a short distance of a nuclear blast powerful enough to send it hurtling through the air is likely to acquire some considerable damage in the process. The latch broke.
Corrected entry: During the waterfall chase, they go down 3 successive waterfalls. These falls are the "Cataratas de Iguazu" on the border between Argentina and Brazil. However, they go down the falls in the wrong order. The last and biggest fall they go down is actually the first fall.
Correction: As the falls are not identified as being those specific falls in the film, they can be dealt with in the same way as any fictional location.
Corrected entry: In the beginning, Irina Spalko says the size of the metal container should be 2 meters by 1.5 meters by 66 centimeters. After finding the container, it's nowhere near that size.
Correction: A character making an assumption is not a movie mistake.
Correction: This is simply not true. George Lucas has never contemplated a 7th live action Star Wars film and has repeatedly made clear his intention to continue the saga in cartoons and eventually a live-action TV show. As for "a pitiful attempt at Star Wars 7", that's just your opinion, it's not trivia.