Not saying wrong but that movie came out in '99, so I think a retro of the 90s would be closer to mid to early 90s since there's that bleed over to the early '00 decade. Of course I'm older so maybe that part would be included, just more considered it 00s era.
Since I didn't comment otherwise I'll mention Xtreme sports, frosted hair colours, and some neon bleed over (though not cyberpunk levels) from the 80s for a 90s retro.
If you can't beat 'em, swallow them.