* ActorAllusion:
** Donovan (whose actor played a Bond villain in ''Film/ForYourEyesOnly'') shoots [[BadassGrandpa Dr. Jones, Sr.]] with a Walther PPK. Not only does SeanConnery get shot, he gets shot by ''[[Film/JamesBond his own gun]]''.
** Also, the opening sequence has Indy getting Harrison Ford's scar (which originated in an auto accident) when using a whip for the first time as a teen.
** Donovan dies in the same manner as his character Scaroth killed Professor Kerensky in an episode of ''DoctorWho''.
* ActorSharedBackground: In the opening sequence, Indy is a Life Scout. Harrison Ford was a Boy Scout in his youth, and attained the level of Life Scout.
** On a side-note, Life Scout is the second highest rank in the Boy Scouts, just below Eagle Scout. A bit of minor black humor in Scouting is that it's called "Life Scout" because not making Eagle is what you'll regret for the rest of your life.
** Indy tells his class "If it's truth you're interested in, Dr. Tyree's office is right down the hall." When he was in college, Harrison Ford took a philosophy course taught by Dr. William Tyree.
* DawsonCasting: An inverted example. Allison Doody was 22 years old when ''Last Crusade'' was filmed, but she plays Elsa Schneider, who can be assumed to be at least around 30 years old considering that she's got a doctorate and she's a highly-respected art professor.
* FakeNationality: Welsh John Rhys-Davies plays Egyptian Sallah, Irish Alison Doody plays Austrian Elsa Schneider, English Alexei Sayle as the Sultan of Hatay and English Julian Glover plays American Walter Donovan with an impeccable accent (but listen closely to when he talks about Hitler and the Nazis wanting "write themselves into the Grail legend. Take on the world" and you'll hear his accent slip a little).
** Seemingly averted, for once, with SeanConnery, famous for not even bothering with the accent; as near as anyone can tell it is apparently canon that Indy's dad really is a Scotsman.
* HilariousInHindsight: Indy is saved when his father convinces him to "let it go", meaning the Grail. His girlfriend would have survived too if [[{{Disney/Frozen}} Elsa had "let it go"]].
* LifeImitatesArt: [[http://www.washingtonpost.com/world/europe/remains-of-king-richard-iii-identified/2013/02/04/d79e87b2-6ebb-11e2-ac36-3d8d9dcaa2e2_story.html?hpid=z3 This 2013 discovery is very interesting on its own]] and more unusual considering in this film, Indy, Elsa and Marcus were looking for the "Tomb of Sir Richard".
* PlayingAgainstType: Creator/SeanConnery, the original Film/JamesBond who spent most of his career playing tough, cunning heroes, here plays a squeamish "bookworm" who is not prepared for his son's rougher, tougher adventures - and he's absolutely ''hilarious'' in the part.
** And he ''still'' sleeps with Ilsa - though Ilsa might have taken advantage of him.
* RealLifeRelative: Mrs. Donovan is played by Isla Blair, Julian Glover's wife in real life.
* RealitySubtext: Sallah is quite surprised at Indy's true name and the origin of his nickname, "Dog? You are named after the dog!?". GeorgeLucas indeed named Indy after his pet dog, who was also the inspiration behind [[StarWars Chewbacca]].
* ThrowItIn: "She talks in her sleep", was an ad-lib by Connery.
* UnderAgeCasting: Creator/SeanConnery plays Dr. Henry Jones, Sr., father of Henry Jones, Jr., or Indiana Jones, who is played by Creator/HarrisonFord. However, Connery is only 12 years older than Ford (Connery was born in 1930, Ford in 1942).
** Alison Doody was 22 when she was cast as Dr. Elsa Schneider, [[VagueAge and although her age wasn't stated onscreen]], she would have to be at least 30 to have her credentials as an experienced archaeologist.
* WeNamedTheMonkeyJack: Indiana was actually the name of George Lucas' malamute, who also served as inspiration for [[{{Franchise/StarWars}} Chewbacca]].
* WhatCouldHaveBeen:
** Had Creator/SeanConnery turned down the role of Henry Sr., Creator/GregoryPeck and Creator/JonPertwee were backup choices.
** In an early draft, the character of "Fedora" was going to be Abner Ravenwood, father of Marion Ravenwood, who was mentioned in ''Film/RaidersOfTheLostArk''.
** It would appear that SeanConnery originally had a very different characterization in mind for Henry Sr., stating in a promo interview for the film that as Indy's father whatever Indy does "I did it first and I did it better." This initial characterization Connery pitched in the interview does not match up with the characterization in the film, where Henry Sr. is more of an AbsentMindedProfessor and all around professional "bookworm", and while he does have his GenreSavvy moments, he spends much of the film fumbling and bumbling his way through the adventure.

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