What's most striking to me is how the older films got the future wrong. Mechanical and computer interfaces of their time were gray and clunky, so they imagined future interfaces would be even more alienating (as things got more "high-tech"). Now the "future interfaces" in our movies have sleeker, more beautiful displays.
Ex: http://24.media.tumblr.com/d1443e589eb392e808a8c57b3d4dd0c9/...
Why display a nicely-tiled "Emergency" screen, when you could just pop up a dialog box and use the built-in exclamation icon?