When I was a kid I'd watch Futurama on DVD with commentary and think "Wow I bet one day I'll be able to pause any movie and click on anything and get all the info about it." I can't believe we went the opposite direction.

This is one thing Amazon does well. Pause almost anything and it will show you the actors presently on screen (with headshots, which you can click on to get more info.

They'll also name the song playing, if any.

Eh, that's not really anything you couldn't do with google almost as easily. I mean real multimedia. I want to pause Lord of the Rings, click on a sword, and get the passage where the sword is described in the book. I want to click on a character and get a behind-the-scenes look at the making of the costume. I want it all.

Ted Nelson's Xanadu, but for film.

It's interesting that Lucasfilm ostensibly invested in the xanaverse but instead of doing something like this, they somehow became focused on creating an MMO instead.

Googling opens you up to spoilers.

I once confused "No Way Home" with "Far From Home" and ended up spoiling the one I hadn't seen yet. :/

That sounds like a bunch of work for very little return, not any new technology.

I guess the other side of that coin is I feel like we have more access to creators than ever with youtube and podcasts. If I want to "meet my heroes" so to speak, I don't need DVD extras, I can just watch them in all sorts of formats online. Pre internet, you couldn't really watch Scorcese on hot ones.