Didn’t they spend insane amounts trying to convert literally everything to run in VR - like the whole of Office 365 for example. I can’t imagine them getting any return from that investment - why would someone at work want to wear a heavy headset instead of looking at a screen?

• Barbie Girl (used to be installed by default on MP3 players)
• Everything is Awesome (LEGO movie)
• Any Christmas song played on repeat in a supermarket

Dune (hopefully)

Until then, it might be something like:

• Last of the Mohicans
• Mad Max Fury Road
• Children of Men
• The Matrix
• Dr Strangelove (&c)

Asteroid City. It was… more meta than expected. Not so much breaking the forth wall as featuring the forth wall!

One way of getting a very localised danger like this would be to put it near radioactive ore deposits? You can only go in with a lead shield, and have to angle it correctly

Set up a monastery in the surrounding building whose religion is centered on only letting in the one person. The ‘key’ is a complex ritual (like happens nightly at the tower of london) with lots of phrases and movements to learn. The ceremony happens somewhere dangerous to the person requesting access.

1 week into the past so that you can put a bet on some event that you actually still remember, and avoid the dangers of the distant eras