So the bit in Maniac Mansion (the 1987 Lucasfilm adventure game) where your 50s-throwback big hair/nu-80s yuppie characters can drain the pool to access the nuclear reactor to fuel the Edsel to take off to the stars w/the alien meteor

And the end of Earth Girls Are Easy (1988), where Jeff Goldblum claims the big hair throwback girl from her ‘80s yuppie guy and takes off in the ‘50s-style spaceship from the drained pool

Are those both quoting a mutual source I missed?