Indiana Jones movies (IJMs) mimic the 1930s and '40s adventure movies and serials that positively overflowed with cliffhangers and excitement. Still, while they use the old adventure serial style, IJMs are unique. They inject their own style of humor, nostalgia, and whimsy that preserves the fun but winks at the silliness in the nonstop action. The second Indiana Jones movie, the Temple of Doom fell short but the first and third, like the original three Star Wars movies, are as close to national treasures as movies can get.
The first and third IJMs, Raiders of the Lost Ark and the Last Crusade are not just subtle parodies of adventure movies, they also poke fun at pompous attitudes about science. These movies take a relatively small under-funded branch of science (archeology), not noted for producing new technological marvels like cancer cures, cell phones, or moon landings, and has it uncover two of the most profound discoveries in all of human history: the Ark of the Covenant and the Holy Grail. By comparison, cures for cancer, cell phones, and moon landings are small potatoes. And how are these profound discoveries made? By teams of orderly white-coated scientists, in spotless laboratories, using millions of dollars of sophisticated equipment? No! They're made by a fedora-wearing maverick, in remote and dangerous places, using a bull-whip and revolver.
While Indy displays the common attributes of a real science nerd: extreme personal integrity, incredible attention to detail, obsessive curiosity, and a lack of interest in monetary gain, he also throws a mean right hook and always gets the girl.
The first and third IJMs do have some unfortunate flaws. For example, they popularized the notion that ordinary bullets make bright flashes of light on impact. While this might seem trivial, it helps romanticize firearms as all-powerful problem-solving devices that can blow up a car's gas tank with a single hit, start fires, and readily kill bad guys while posing no real danger to heroes. On the other hand, making firearms objects of irrational fear also gives them a power they don't deserve. Firearms are just too serious to depict in any manner other than realistic.
Having said the above, we still maintain that IJMs are worthy of some movie physics forgiveness. They simply can't be judged in the same way as typical action/adventure movies.