Wayne’s world is almost too on the nose honestly. Myers & co captured the 80s rocker character well. They/we were everywhere then. But it’s a silly movie so doesn’t quite fit with your theme.
My original thought was Fast Times. Just searched quintessential gen x movies and it came up on top of the list along with all the others mentioned here. Oddly I haven’t seen half of them lol
Just stop using it!! Meaning government officials agencies etc. It blows my mind that any thing close to any level of government in Canada still has or uses an account there