Any last-century Spielberg, honestly.
Close Encounters,
Raiders, and
E.T. would be my top picks.
Jaws if you think it's appropriate – I saw it on the big screen at 9 and survived, though I'm still leery of jump scares (the underwater head got me good).
Gremlins &
Goonies of course.
To highlight the ridiculousness of what we thought our current digital age would be you could slip in
Hackers and
Lawnmower Man, but I think they both have bewbs iirc.
Tron is a decent pick for old-school graphic goodness.
Brazil, for a taste of that sort of humor.
The Fly for a taste of that sort of horror.
I don't know if they'd go for it, but classic Rod Serling
Twilight Zone is marvelous, virtuous TV. Don't hold the latter against it.