Society (1989) Arrow UK (Blu-ray + DVD)
includes an easter egg:
On either the Blu-ray or the DVD, go to Special Features, highlight 'Screaming Mad George Music Video' then press RIGHT to play the Screaming Mad George short (copyright 2003, released 2005 according to IMDb) called 'Boy in the Box' (4:01 on Blu-ray, 3:54 on DVD), in English with burnt-in Asian subtitles (probably Chinese, but I'm not sure as I don't know much about Asian languages).
I suspect the Arrow US (Blu-ray + DVD) and the Arrow UK (DVD only) releases have the same easter egg, but can't confirm.
By the way, I've seen some pretty strange movies over the years, but this short is perhaps the weirdest thing I've ever watched - truly bizarre!
Source: I own a copy of the Arrow UK (Blu-ray + DVD).