Uh, yeah, except that he never had to wear that hat again because the wardrobe deparment had more than one!
I'm going to guess that the real answer here is that it wasn't REALLY what is considered crushable, in the travel hat sort of way. My reasoning? In the plane, when he's wet, the brim blows up. When he's riding on the horse, or the truck, or any other time when his hat is dry, wind does not blow the brim up. That would suggest to me that it is fairly stiff, and not especially crushable.
I have a Akubra Federation Deluxe and while it is malleable enough to custom bash and does not feel stiff really, it would certainly not roll up into a bag and come out the same way it went in, unlike a genuine crusher like my Jaxon Crushable C-Crown Fedora.
I am talking about hats that are specifically manufactured to be "crushable." They do not have stiffener in the felt, so they can be fairly well compressed then return to a reasonable facsimile of their original shape. I.e. the Jaxon Crushable C-Crown Fedora or many other sorts of travel hats that are advertised as "crushable".
I am NOT saying that Indy's hat wouldn't crush if you sat on it. Of course it would! What I AM saying is that it would not easily return to its original shape once crushed, as some travel hats would.
Unless I am mistaken, I believe that is the question at hand.
Fedoras with a leather sweatband (as for example the HJ) is not what is considered a crushable hat. A crushable hat can be put into a cardboard pipe (like the ones for posters) and then be unfolded with no ill effects. A leather sweatband COULD be damaged.
Marc, is it possible to uniformly shrink a Herbert Johnson? By maybe spraying it with a mist of water, then bow drying it with a hair dryer? Am I crazy?