This movie poster suffers from a case of the RANDOM.
A little less Shia LaBoeuf, a little more Harrison Ford naked, please.
This is not entirely outside the realm of possibility.
I have my doubts that anyone would consider a giant magnetic crystal skull to be part of anyone's local mythology. I won't spoil the plot for you, but there's alternate dimensions involved. I think alternate dimensions are better left for Star Trek plots to grapple with than dear Dr. Jones.
I present to you now, a list of ridiculous things some of which may be included in this movie. See if you can pick out which are actually plot points, and which are not in the movie at all. Then go see for yourself. Because a strange movie is best shared with friends afterall.
Jeez, do I at least get to make out with a hottie??
She's 50?!? What did I ever do to you, Mr. Lucas? Go throw yourself to the ants.
Man-eating ants, capoeira, improbably-hidden Mayans, book-learning, motorcycles, submarines, the invention of the computer, annoying prodigies, the KGB, Psychics, Psychos, magnetic gunpowder, interdimensional portals, combinatorics, death-waterfalls, crazy old men, crazy old women, color-coded sea anemones, swarms of killer bees, Bea Arthur being killed, non-quick sand/lightning sand?, a Sicilian when death is on the line, public humiliation of the educational system, Roswell, Yale, Maui, poetry no one's ever heard of, ponchos, fencing, tarzan-like tree-swinging, monkey connections, atomic bombs, Harrison Ford . . . nekkid, fierce enjoyment of sexual relations with a woman.
(Note: I'll give you a sad truth here which partially answers the above question. The truth of the matter is that the film does not imply any sort of current sexual relation between Indy and any other character. I suppose in his old age, Indy just stopped gettin' it on.)