Dr Jones, I Presume?

In honor of the audio round clue, and the opening of the 4th movie:

* Indiana Jones' true name is Henry Walton Jones, Jr., after his father

* Jones is notable for his bullwhip, fedora, leather jacket, and fear of snakes.

* Tom Selleck was originally cast as Indiana Jones, but was not able to take the role because he was committed to "Magnum, P.I."

* Tom Selleck was Steven Spielberg's second choice for the role of Indiana Jones. Harrison Ford was his first, but George Lucas objected, since Ford had been in both American Graffiti (1973) and Star Wars (1977).

* In filming the Well of Souls sequence in Raiders of the Lost Ark, the producers scoured every pet shop in London and the South of England for every snake they could lay their hands on. Still, once all the snakes were on set, it became clear that there were not nearly enough of them, so Steven Spielberg had several hoses cut into lengths, and these were used as well.

* A sheet of glass separates Harrison Ford and the arched (and highly dangerous) cobra when he falls into the Well of Souls in Raiders; the snake actually did spray venom onto the glass.

* The opening scene of Raiders is partly based on a classic Disney comic adventure; exploring a lost temple, Donald Duck, his nephews, and Scrooge McDuck must evade a succession of booby traps, like flying darts, a decapitating blade, a huge boulder, and a tunnel flooded with a torrent of gushing water.

* Indiana Jones's hat came from the famous Herbert Johnson hat shop in Saville Row, London. The hat was the shop's Australian model. On the Bonus Features DVD, costume designer Deborah Nadoolman said that in order to properly age the hat, she grabbed and twisted the hat, then she and Harrison Ford both sat on it, and it eventually looked like "a very lived-in and well-loved" hat.

* Indiana Jones never loses his hat as an homage to the classic serials of the 1940s. In those serials, the heroes' hats stayed on heads through virtually any assault. Indy does, however, lose his hat once each in both Indiana Jones and the Temple of Doom (1984) and Indiana Jones and the Last Crusade (1989).

* When Raiders was originally submitted for an MPAA rating, it was given a rating of "R" because of the sight of an exploding head. In order to lower the rating, flames were superimposed over this image. The rating was lowered to "PG" (at the time, the PG-13 rating did not exist).

* The infamous scene in Raiders in which Indy shoots a marauding and flamboyant swordsman was not in the original script. Harrison Ford was supposed to use his whip, but the food poisoning he and the rest of the crew had gotten made him too sick to perform the stunt. Instead, someone's off-handed remark, "Why doesn't he just shoot him and get it done and over with?" caused an immediate change in the script.

Need more Indy? Try the Indiana Jones Wikipedia